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govinfo:USCOURTS-laed-2_20-cv-03135-2

U.S. District Court for the Eastern District of Louisiana · 2022-12-21

· GavelSight synced 2026-09-06 03:40:02

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UNITED STATES DISTRICT COURT 
EASTERN DISTRICT OF LOUISIANA 
 
WILCO MARSH BUGGIES AND 
DRAGLINES, INC. 
 
VERSUS 
WEEKS MARINE, INC. 
CIVIL ACTION 
NO. 20-3135 
SECTION: “J”(1) 
ORDER & REASONS 
Before the Court is a Motion for Summary Judgment (Rec. Doc. 110) filed by 
Defendant Weeks Marine, Inc. and an opposition (Rec. Doc. 127) filed by Plaintiff 
Wilco Marsh Buggies & Draglines, Inc as well as a reply (Rec. Doc. 143). Also before 
the Court is Plaintiff’s Motion in Limine to Strike and Exclude Evidence (Rec. Doc. 
126) and an opposition (Rec. Doc. 135) filed by Defendant as well as a reply (Rec. Doc. 
141). Having considered the briefs, the record, and the applicable law, the Court finds 
that the motions should be DENIED. 
FACTS AND PROCEDURAL BACKGROUND 
 The patented technology at issue is Plaintiff’s ‘801 Patent, which is an 
amphibious vehicle with excavation capabilities. (Rec. Doc. 1, at 3). Amphibious 
vehicles, also known as marsh buggies, help oil and gas companies work both on land 
and in marshy terrain. (Rec. Doc. 32, at 2).  The typical structure of marsh buggies 
involves two pontoons connected to a center platform, which allows the technology to 
not sink into low -lying, soft marsh ground. Id. However, with rising water levels, 
marsh buggies have become less useful , as they are more likely to sink  in higher 
water. Id. 
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 To counter the difficulties presented with climate change, Wilco developed the 
‘801 Patent, which incorporates spud barges to allow the marsh buggies to float in 
high water in addition to working on land and in marshes . Id. at 2-3. Spud barges 
utilize pilings that extend down to the bottom of the water allowing the platform to 
stay buoyant even with heavy machinery on top. Id. 
 After Plaintiff patented this technology  in 2003, a Malaysian company, EIK 
Engineering (“EIK”), allegedly began selling copies of Plaintiff’s amphibious vehicle 
in the U.S. market. (Rec. Doc. 1, at 4-5). The copies allegedly consist of an amphibious 
vehicle that has a pair of pontoons and spud system, which Plaintiff contends was 
distinct and novel to their ‘801 Patent. Id. Plaintiff has struggled to serve, contact, 
and litigate with EIK . Consequentially,  Plaintiff sued EIK’s customers instead, 
including the Defendant in this case. (Rec. Doc. 32, at 5). 
 Plaintiff filed the instant suit in this Court on November 18, 2020, seeking a 
declaration of infringement and damages.  Defendant Weeks Marine. Inc. (“Weeks”) 
has moved for summary judgment, asserting that the ‘801 Patent is invalid. 
LEGAL STANDARD 
Summary judgment is appropriate when “the pleadings, the discovery and 
disclosure materials on file, and any affidavits show that there is no genuine issue as 
to any material fact and that the movant is entitled to judgment as a matter of law.” 
Celotex Corp. v. Catrett, 477 U.S. 317, 322 (1986) (citing F
ED. R. CIV. P. 56); see Little 
v. Liquid Air Corp. , 37 F.3d 1069, 1075 (5th Cir. 1994). When assessing whether a 
dispute as to any material fact exists, a court considers “all of the evidence in the 
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record but refrains from making credibility determinations or weighing the evidence.” 
Delta & Pine Land Co. v. Nationwide Agribusiness Ins. Co.,  530 F.3d 395, 398 (5th 
Cir. 2008). All reasonable inferences are drawn in favor of the nonmoving party, but 
a party cannot defeat summary judgment with conclusory allegations or 
unsubstantiated assertions. Little , 37 F.3d at 1075. A court ultimately must be 
satisfied that “a reasonable jury could not return a verdict for the nonmoving party.” 
Delta, 530 F.3d at 399.  
 If the dispositive issue is one on which the moving party will bear the burden 
of proof at trial, the moving party “must come forward with evidence which would 
‘entitle it to a directed verdict if the evidence went  uncontroverted at trial.’” Int’l 
Shortstop, Inc. v. Rally’s, Inc., 939 F.2d 1257, 1264-65 (5th Cir. 1991). The nonmoving 
party can then defeat the motion by either countering with sufficient evidence of its 
own, or “showing that the moving party’s evidenc e is so sheer that it may not 
persuade the reasonable fact-finder to return a verdict in favor of the moving party.” 
Id. at 1265.  
 If the dispositive issue is one on which the nonmoving party will bear the 
burden of proof at trial, the moving party may sa tisfy its burden by merely pointing 
out that the evidence in the record is insufficient with respect to an essential element 
of the nonmoving party’s claim. See Celotex, 477 U.S. at 325. The burden then shifts 
to the nonmoving party, who must, by submittin g or referring to evidence, set out 
specific facts showing that a genuine issue exists. See id. at 324. The nonmovant may 
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not rest upon the pleadings but must identify specific facts that establish a genuine 
issue for trial. See id. at 325; Little, 37 F.3d at 1075. 
DISCUSSION 
 Defendant Weeks Marine. Inc. (“Weeks”) has moved for summary judgment, 
arguing that the Asserted Claims of Plaintiff Wilco Marsh Buggies & Draglines, Inc.’s 
(“Wilco’s”) patent are invalid because they either lack novelty under 35 U.S.C. § 102 
or because they would have been obvious to a person of ordinary skill in the art 
(“POSITA”) at the time of the invention under 35 U.S.C. § 103. (Rec. Doc. 110 -2, at 
5). In its opposition, Wilco argues that the instances of alleged prior art supplied by 
weeks do not anticipate the ‘ 801 patent. Wilco also argues in part that certain 
elements of Week s’ proffered summary judgment evidence are inadmissible. (Rec. 
Doc. 127, at 13, 14). Therefore, the Court must first determine what evidence can be 
considered before addressing the merits of Weeks’ motion for summary judgment. 
I. Disputed Summary Judgment Evidence 
Wilco’s opposition references its Motion in Limine to Exclude the MudMaster 
References (Rec. Doc. 126). Wilco states that the exhibits discussed therein should 
be excluded and not considered when ruling on summary judgment. (Rec. Doc. 127, 
at 13). Therefore, the Court must herein address Wilco’s motion in limine. 
A. The Declaration of Patrick Hudson  
Wilco first argues in its opposition to Weeks’ Motion for Summary Judgment that 
the expert report of Patrick Hudson should be excluded for the reasons stated i n its 
Motion to Exclude the Expert Testimony of Patrick Hudson (Rec. Doc. 120). However, 
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the Court denied Wilco’s request to file this motion because it was untimely. (Rec. 
Doc. 134). Therefore, the Court finds that the Declaration of Patrick Hudson is 
admissible evidence and can be used in determining Week s’ motion for summary 
judgment.  
B. MudMaster References  
Wilco next argues that all references to the MudMaster  should be excluded 
because they lack authenticity, constitute hearsay, and are not eligible as prior art. 
(Rec. Doc. 127, at 13). The MudMaster is an alleged instance of prior art that W eeks 
alleges anticipated the claimed invention of the ‘801 patent.  
Wilco moves to exclude any references to Record Document numbers 110-9, 110-
10, 110-11, 110-13. 110-14, 110-15. 110-16, 110-17, 110-18, 110-19, and 110-20. (Rec. 
Doc. 126, at 1). These exhibits are referred to by various exhibit numbers in 
different memoranda and filings. Therefore, where possible, the Court will refer to 
these exhibits by their record document numbers.  
a. 110-9, 110-10, and 110-11 Parchure 1996, Clark 1983, and the FOIA 
Response 
Wilco has moved to strike two U.S. Army Corps of Engineers publications titled 
“Parchure, Trimbak Mukund. Equipment for Contaminated Sediment Dredging. US 
Army Engineer Waterways Experiment Station, 1996” (“Parchure 1996”) and 
“Clark, Gene R. Survey of Portable Hydraulic Dredges. US Army Engineer 
Waterways Experiment Station, 1983 (“Clark 1983”). Wilco has also moved to strike 
a FOIA Response which produced these documents. Weeks relies on these 
publications in their Motion for Summary Judgment as evidence that MudMaster 
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prior art was available to the public prior to the ‘801 Patent’s effective filing date. 
(Rec. Doc. 110-2, at 9). Wilco argues that these publications should be excluded 
because they are not properly authenticated, constitute inadmissible hearsay, and 
are not relevant. 
Federal Rule of Evidence rule 901 requires that in order for an exhibit to be 
admitted, it must be authenticated, meaning that the party offering the exhibit 
must produce evidence which establishes that the exhibit is what the proponent 
says it is. Wilco argues that Parchure 1996 and Clark 1983 should be excluded 
because they were obtained from an Internet Archive which is not self-
authenticating. (Rec. Doc. 126-1, at 3, 9-10).  
Although Wilco points to an email from Weeks’ counsel stating that the Clark 
1983 and Parchure 1996 were “located” using the online database (Rec. Doc. 126-1, 
at 3), the actual documents themselves were obtained from the ERDC Library of the 
U.S. Army Corps of Engineers (Rec. Doc. 135, at 11). Therefore, Weeks asserts that 
both Clark 1983 and Parchure 1996 are properly authenticated in accordance with 
Fed. R. Evid. 901(b)(7) which provides that a document may be authenticated with 
evidence that shows it was recorded in a public office. Wilco asserts that the ERDC 
Library is not a public office at all, although they do not cite any law or cases to this 
effect. (Rec. Doc. 141, at 3). The Court could not locate nor did either of the parties 
provide any Fifth Circuit precedent directly addressing what constitutes a public 
office for the purposes of Rules 901(b)(7) or 803(8). However, the ERDC Library is 
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run by the Army Corps of Engineers and is located on a military base. Therefore, 
the Court finds that it is a public office.  
Wilco also asserts that Clark 1983 and Parchure 1997 should be excluded 
because they are hearsay. (Rec. Doc. 126-1, at 6, 10). However, neither of these 
exhibits is being introduced for the truth of the information asserted in the 
publications. Rather, they are being introduced to show that prior art was publicly 
available prior to the ‘801 Patent’s critical date. Therefore, these documents are not 
hearsay at all.  
Finally, Wilco also attempts to argue that Clark 1983 and Parchure 1996 should 
be excluded because they do not show that they were publicly available prior to the 
‘801 Patent’s critical date as is required by 35 U.S.C. § 102. Weeks’ opposition 
properly characterizes this as a relevancy objection, although Wilco does not name 
it as such. (Rec. Doc. 135, at 12). Wilco argues that there is no affidavit from a 
librarian attesting to the availability date of these publications nor is there an 
identifiable date stamp showing when the document was deposited and indexed. 
(Rec. Doc. 126-1, at 6). However, the FOIA response (Rec. Doc. 110-11) establishes 
the dates on which both Clark 1983 and Parchure 1996 were catalogued in the 
library archive. The records indicate that a physical copy of Clark 1983 was entered 
into the library on August, 16, 1983 (Rec. Doc. 135-2) and that a physical copy of 
Parchure 1996 was entered into the library on November 6, 1996. (Rec. Doc. 135-3).  
In its reply to Weeks’ opposition to the motion in limine, Wilco argues that the 
FOIA letter itself is inadmissible hearsay which therefore cannot be used to show 
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that these documents were publicly available. (Rec. Doc. 141, at 3). Federal Rule of 
Evidence rule 803(8) states that evidence will not be excluded as hearsay if: 
(A) it sets out: (i) the office's activities; (ii) a matter observed while 
under a legal duty to report, but not including, in a criminal case, a 
matter observed by law-enforcement personnel; or (iii) in a civil case or 
against the government in a criminal case, factual findings from a 
legally authorized investigation; and (B) the opponent does not show 
that the source of information or other circumstances indicate a lack of 
trustworthiness. 
Wilco argues that the FOIA response letter was not prepared as part of the 
regular record keeping activities of a public office, was not prepared pursuant to a 
legal duty, and does not contain factual findings from a legally authorized 
investigation. (Rec. Doc. 141, at 2). Furthermore, Wilco argues that the military 
base which houses the ERDC Library is restricted, and therefore, even if Clark 1983 
and Parchure 1996 were published there as is detailed in the FOIA response, a 
POSITA would have been unable to obtain these documents. (Rec. Doc. 141, at 3).  
As discussed previously, the ERDC Library is a public office, and the FOIA 
response was prepared in accordance with a legal duty under the Freedom of 
Information Act to fulfill such requests. Furthermore, the records search conducted 
to locate these documents and the dates they were entered into the library is a 
legally authorized investigation, even if it was merely a quick records search. 
Therefore, the Court finds that the FOIA Response meets the requirements of Rule 
803(8) and is admissible. Wilco is unable to successfully negate the indicia of 
trustworthiness demonstrated by these exhibits. Therefore, they are deemed 
admitted.  
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b. Declaration of David Binkley dated May 19, 2022 
 
Wilco also moves to exclude the May 19, 2022 Declaration of David Binkley from 
evidence. (Rec. Doc. 126-1, at 10-11). However, Weeks has stated that they do not 
intend to proffer this declaration as a trial exhibit. (Rec. Doc. 135, at 15 n.7). 
Furthermore, Weeks does not refer to this declaration in their Motion for Summary 
Judgment. Rather, they refer to Mr. Binkley’s November 3, 2022 deposition. To the 
extent that Wilco implies that Mr. Binkley’s deposition testimony should also be 
excluded, the Court finds that Wilco has not shown that Mr. Binkley does not have 
personal knowledge of the record keeping practices of DMI within the instant 
Motion to Strike. Therefore, Wilco’s request to strike the May 19th Declaration is 
moot, and any implied request to strike the November 3rd Declaration is denied.  
c. 110-13, 110-14, 110-15, 110-16: DMI Brochures 
Wilco next moves to strike the following DredgeMasters International, Inc. 
documents: (1) DredgeMasters International Inc., Technical File 80112 [Brochure], 
1987 (“MudMaster Technical File 80112”) (2) DredgeMasters International Inc., 
MudMaster [Brochure], 1987 (“MudMaster Brochures”) (3) DredgeMasters 
International Inc. [Brochure], 1987 (“DredgeMasters General Brochure”) under Fed. 
R. Evid. 602 and 901.  (Rec. Doc. 126-1, at 13). Wilco argues that these exhibits 
cannot be properly authenticated because no one with any personal knowledge can 
attest to its creation, dissemination, or public availability. (Rec. Doc. 126-1, at 16).  
Weeks argues that this technical file constitutes a business record under Rule 
803(6) and an ancient document under 803(16) which applies to statements in 
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documents prepared prior to January 1, 1998 and whose authenticity is established. 
Weeks argues that the authenticity of the brochure has been established by Mr. 
Binkley who testified that he was aware of the brochures when he started working 
at DMI in 1987 and personally distributed them to customers at a trade show and 
to customers who visited the DMI office. (Rec. Doc. 135, at 18). Mr. Binkley also 
testified that he had personal knowledge of the record keeping system at DMI and 
knew that the marketing materials were stored in both digital and physical format. 
Id. at 19. Because Mr. Binkley can testify from personal knowledge as to the 
existence of the brochure and that it is what it is purported to be, the document is 
properly authenticated and is admissible.  
d. D
ocuments identified as Exhibits A – H in Dr. Patrick Hudson’s 
Supplemental Invalidity Report dated November 4, 2022 (“Collaborative 
References”)1 
The Collaborative References refer to:  
(i) Exhibit A- Assembly Disassembly Instructions – Model 
AHP-250SM (“the MudMaster Assembly-Disassembly 
Instructions”) 
(ii) Exhibit B- Shipping Weights and Dimensions of Major 
Components – Model AHP-250SM 
(iii) Exhibit C- Trunnion Assembly  
(iv) Exhibit D- Track System Operation – Model AHP-250SM 
(v) Exhibit E- 12-22-80 LEI Sales Contract  
(vi) Exhibit F- 12-22-80 LEI Sales Contract – As-Sold Specs 
(vii) Exhibit G- Feb. 2, 1981 Inter-Office Memorandum re. 
Amphibious Dredge at ConExpo 
(viii) Exhibit H- 3-22-93 PSI Engineering Sales Contract  
 
1 The corresponding record document numbers in Weeks’ Motion for Summary Judgment are Rec. Doc. 110-117 
(Exhibit A), Rec. Doc. 110-118 (Exhibit D), Rec. Doc. 110-119 (Exhibit E), and Rec. Doc. 110-120 (Exhibit G).  
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These exhibits are intended to show that a MudMaster sale had occurred prior to 
the ‘801 Patent’s effective date and that this sale contained all the limitations 
expressed in that Patent. Wilco argues that the Collaborative References should be 
excluded because they cannot be authenticated and constitute inadmissible 
hearsay. (Rec. Doc. 127, at 14). Wilco argues that Mr. Binkley cannot authenticate 
these documents because he was not employed at DMI until 1987, seven years after 
the alleged sale. (Rec. Doc. 126-1, at 23). Furthermore, Wilco argues that Weeks 
fails to offer any direct evidence that the Collaborative References were publically 
accessible prior to June 3, 2003. Id. at 22. Weeks again argues that these documents 
are admissible under the business records exception in Fed. R. Evid. 803(6) and as 
ancient documents under 803(16).  
Wilco does not dispute that any of the Collaborative references are ancient 
documents created prior to January 1, 1998. Instead, Wilco argues in its reply that 
these documents “must first clear the hurdle of FRE 803(6) to be authenticated.” 
(Rec. Doc. 137-2, at 9). The hearsay exception for ancient documents does not bear 
some sort of double requirement of being both ancient and a business record. 
Instead Rule 803(16) is its own exception to the hearsay rule. There is no 
requirement for ancient documents to meet two unrelated hearsay exception to be 
authenticated. In fact, Rule 901 provides that ancient documents can be 
authenticated if they are (1) in a condition that creates no suspicion about their 
authenticity (2) were in a place where, if authentic, they would likely be; and (3) are 
at least twenty years old when offered. Wilco provides no evidence that would call 
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into question the authenticity of these exhibits, nor does it suggest that they were 
kept in a suspicious place or are younger than twenty years old. Furthermore, the 
Fifth Circuit has repeatedly emphasized that the standard for authentication is not 
burdensome. See United States v. Ceballos, 789 F.3d 607, 618 (5th Cir. 2015). A 
proponent of evidence does not need to conclusively prove its authenticity. Rather, 
the proponent nearly needs to “produce evidence sufficient to support a finding that 
the item is what the proponent claims it is.” Fed. R. Evid. 901(a). The Court finds 
that the testimony of Mr. Binkley is sufficient to authenticate these ancient 
documents.  
 Wilco also argues that these exhibits should be excluded because they do not 
constitute publicly available prior art. (Rec. Doc. 126-1, at 20). Wilco asserts that 
“Weeks offers no direct evidence from anyone with personal knowledge attesting 
that the Collaborative References were made available to the public” prior to the 
filing date of the ‘801 Patent. (Rec. Doc. 126-1, at 21). Wilco also argues that the 
Collaborative References are not printed publications under 35 U.S.C. § 102. A 
document is publicly accessible when “has been disseminated or otherwise made 
available to the extent that persons interested and ordinarily skilled in the subject 
matter or art, exercising reasonable diligence, can locate it and recognize and 
comprehend therefrom the essentials of the claimed invention without need of 
further research or experimentation.” Cordis Corp. v. Boston Scientific Corp., 561 
F.3d 1319, 1333 (Fed. Cir. 2009) (internal citation and quotation omitted).  
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 Weeks argues that these DMI documents are relevant as prior art because 
they are either printed publications under 35 U.S.C. § 102, or because they are 
evidence which establishes that the MudMaster was in public use or on sale prior to 
the ‘801 Patent’s effective date and “it embodied the claimed invention, thereby 
qualifying the machine itself as an individual prior art reference under 35 U.S.C. § 
102.” (Rec. Doc. 135, at 24).  
 In particular, Wilco urges that Exhibits E, F, and G be excluded because they 
were all created prior to the time that Mr. Binkley started working at DMI and are 
therefore outside of his personal knowledge. (Rec. Doc. 126-1, at 23). However, Wilco 
cannot show that Mr. Binkley was unfamiliar with the record keeping practices at 
DMI. In fact, Binkley testified that it was regular practice at DMI to create sales 
invoices such as those in Exhibits E and F. Wilco cannot show that these documents 
were not kept and stored in the way that would be expected by DMI’s normal record 
keeping practices. Because, Binkley is a qualified custodian of these records, 
because they are all older than twenty years old, and because they bear sufficient 
indicia of trustworthiness that they are what they are purported to be, the 
Collaborative references are deemed authenticated and admissible under Rule 
803(16).  Therefore, all of the evidence challenged by Wilco’s Motion in Limine to 
Strike and Exclude Evidence (Rec. Doc. 126) is deemed admitted, and the motion 
is DENIED. 
 
 
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II. W eek s’ Motion for Summary Judgment 
Turning now to the merits of Weeks’ Motion for Summary Judgment (Rec. Doc. 
110), the Court must evaluate whether claims 1-5 and 9-15 of U.S. Patent No. 
6,918,801 (“the ‘801 Patent”) are invalid because they either lack novelty or because 
they would have been obvious to a person of ordinary skill in the art at the time of 
the invention. A patent is presumed valid, and invalidity must be proven by clear 
and convincing evidence. Hybritech Inc. v. Monoclonal Antibodies, Inc., 802 F.2d 
1367, 1375 (Fed. Cir. 1986). 
a. Novelty 
Under 35 U.S.C. § 102, patents should not be issued if the patent was anticipated, 
or if “patented or described in a printed publication in this or a foreign country or in 
public use or on sale in this country, more than one year prior to the date of the 
application for patent in the United States.”
2 To prevail on a claim that a patent is 
invalid because it has been anticipated, the claimant must prove by clear and 
convincing evidence that “the four corners of a single, prior art document describe 
every element of the claimed invention, either expressly or inherently, such that a 
person of ordinary skill in the art could practice the invention without undue 
experimentation.” Advanced Display Systems, Inc. v. Kent State University, 212 
F.3d 1272, 1282 (Fed. Cir. 2000). Additionally, to fully anticipate a claimed 
invention, the prior art must be “enabling.” To be enabling, a person of ordinary 
 
2 Because the patent at issue was filed prior to March 16, 2013, pre-America Invents Act (“AIA”) law governs this 
case. 
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skill in the art must be able to make or use the claimed invention without undue 
experimentation based on the disclosure of that particular document. In re Morsal, 
713 F.3d 104, 110 (Fed. Cir. 2013).  
Weeks points to three alleged instances of prior art that anticipate the claims of 
the ‘801 Patent: the MudMaster, Harada, and Zong. Weeks is entitled to summary 
judgment if any of these three bear no difference between the claimed invention and 
the referenced disclosure. (Rec. Doc. 110, at 15).  In other words, if there is even one 
difference between any of these machines and the ‘801 Patent, summary judgment 
must be denied.  
1. MudMaster  
Weeks points to the 1980 sale of the MudMaster from Dredgemasters, Inc. to 
Latina Export & Import, Inc. as a sale that invalidates the ‘801 Patent. Therefore, 
Weeks must show by clear and convincing evidence that this sale occurred and that 
each claim of the ‘801 patent can be found in the Mudmaster. As addressed above, 
the Court finds that the DMI sales documents (Rec. Docs. 110-17, 110-18) are 
admissible. However, Weeks must prove not only that the sale occurred, but also 
that each limitation of the asserted claims existed in that particular sale.  
Wilco asserts that Weeks has failed to establish that the MudMaster anticipated 
each limitation of the ‘801 Patent because “Weeks inappropriately relies on more 
than seven (7) references relating to MudMaster dated between 1983 and 1996” 
which were all created after the sale to demonstrate the features of the 1980 
product and because “Weeks’ attempt to utilize multiple references to demonstrate 
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invalidity by anticipation is a violation of the fundamental rule that a single 
reference must disclose every element of the challenged patent.” (Rec. Doc. 127, at 
16).  Furthermore, Wilco argues that none of these references are contemporaneous 
with the 1980 sale, and therefore there is no way to prove that the 1980 machine 
contains each and every limitation of the asserted claims of the ‘801 Patent. (Rec. 
Doc. 127, at 17).  
The Federal Circuit has explained that in order to conclusively anticipate a 
patent, every element of a claimed invention must be contained within a single 
prior art reference. Advanced Display Systems, Inc., 212 F.3d at 1282. It is possible 
for extraneous documents to be considered if they are “incorporated by reference,” 
meaning that the host document must identify with detailed particularity what 
specific material it incorporates and clearly indicate where the material is found in 
the various documents.” Id. “If incorporation by reference comes into play in an 
anticipation determination, the court’s role is to determine what material in 
addition to the host document constitutes the single reference. The factfinder’s role, 
in turn, is to determine whether that single reference describes the claimed 
invention.” Id. In its motion for summary judgment, Weeks does not identify where 
if at all their MudMaster references are incorporated into one another so that they 
may be considered one reference. Therefore, the Court cannot say as a matter of law 
that these documents constitute one instance of prior art which anticipates the ‘801 
Patent.  
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Because the bar for holding a patent invalid is clear and convincing evidence, 
and because all inferences in resolving a motion for summary judgment must be 
made in favor of the non-movant, the Court finds that there is a genuine issue of 
material fact as to whether the sale of the MudMaster teaches each and every 
limitation of the ‘801 Patent. 
2. Harada 
Weeks also asserts that Harada (Japanese Publ. No. JPH0654018B2) anticipates 
the claims in the ‘801 Patent. Wilco argues that Harada “does not teach a device 
which can move on land as required by claims 1, 9, and 12, and it fails to disclose an 
operable spud system as required by claims 1, 9, and 12.” (Rec. Doc. 127, at 18). 
Wilco argues that “Harada fails to provide an enabling disclosure of “a track system 
disposed on said pontoons and adapted to provide propulsion to the vehicle when 
moving on land or in water,” as recited in claims 1 and 12 of the ‘801 Patent. (Rec. 
Doc. 127, at 19). Wilco argues that the cleats on the track system of Harada would 
become too clogged with mud to properly operate, and therefore render the Harada 
a non-enabling reference. Id. Wilco cites to the expert testimony of William T. 
Bennett to support this assertion that the track system would not operate properly. 
Weeks has moved to strike certain portions of Bennett’s testimony related to his 
opinions on copying and either strike or restrict his testimony where it deviates 
from this Courts Markman hearing findings relating to the “connected to /attached 
to conflict”. (Rec. Doc. 109, at 10). However, because neither of these topics is 
necessary to decide the Motion for Summary Judgment, the Court will defer on 
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addressing Weeks’ arguments concerning the scope of Bennett’s testimony. 
Therefore, the Court finds that there is a genuine issue of material fact as to 
whether the Harada is enabling and therefore fully anticipates the ‘801 Patent. 
Because the Court finds a genuine issue of material fact as relating to claims 1 and 
12, it is unnecessary to address Weeks’ other contentions relating to Harada.  
3. Zong  
Weeks also argues that the disclosed apparatus of Zong discloses each and every 
limitation of the asserted claims. (Rec. Doc. 110, at 10). However, Wilco again points 
to a genuine issue of material fact regarding whether Zong provides enabling 
disclosure relating to is track system in light of claims 1 and 12 of the ‘801 Patent. 
(Rec. Doc. 127, at 21). Similar to Harada, Wilco’s expert, William Bennett, opines 
that Zong’s track system is not fully enabling because it has “insufficient driving 
force provided by the track system” to free the machine from deep mud. Id. Bennett 
points to Zong’s unique “walking spuds” that move the machine through the marsh 
when the tracks lose traction as evidence that the track system alone would be 
insufficient. Id. Wilco and Weeks have both submitted expert testimony regarding 
whether or not Zong fully anticipates the ‘801 patent. Therefore, the Court finds 
that there is a genuine issue of material fact related to Zong, and the Court has no 
need to evaluate Weeks’ other claims relating to Zong in this Order.  
Finally, the sheer volume of evidence submitted by both parties in this case 
weighs against summary judgment. Both sides have introduced competing 
testimony and evidence as to the validity of the ‘801 Patent and whether it was 
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infringed. Therefore, because the standard for invalidating a patent for lack of 
novelty is clear and convincing evidence, the Court cannot conclude that Weeks is 
entitled to judgment as a matter of law.  
b. Obviousness 
Weeks alternatively argues that summary judgment should be granted because 
the claimed invention would be obvious to a person of ordinary skill in the art to 
which the claimed invention pertains under 35 U.S.C. § 103. “The combination of 
familiar elements according to known methods is likely to be obvious when it does 
no more than yield predictable results.” KSR International Co. v. Teleflex Inc., 550 
U.S. 398, 416 (2007). However, “a patent composed of several elements is not proved 
obvious merely by demonstrating that each of its elements was, independently, 
known in the prior art.” Id.  
Weeks asserts that Conventional Amphibious Excavators were in public use or 
on sale in the U.S. more than a year prior to the priority date of the ‘801 Patent. 
(Rec. Doc. 110, at 27). However, these excavators presented a risk of overturning 
while floating because using the backhoe would shift the center of gravity. Id. 
Weeks also points out that spud barges existed prior to the ‘801 Patent. The spuds 
allow for stabilization and work to prevent capsizing. Weeks asserts that a POSITA 
would have found it obvious to combine the pre-existing amphibious excavators with 
spuds in the same way that the MudMaster, Harada, and Zong references teach. Id. 
at 28.  
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Wilco argues however that Weeks is merely engaging in hindsight bias by 
concluding that because the elements of the claimed invention were combined it 
must have been obvious to do so. (Rec. Doc. 127, 23-24). Wilco also asserts that 
Weeks did not address the secondary considerations or objective evidence of non-
obviousness. Courts are required to consider objective evidence of non-obviousness 
including the commercial success of the invention, a long-felt but unsolved need 
addressed by the invention, a failure of others to solve the problem which the 
invention addresses, and the copying of the invention by others. Graham v. John 
Deere Co., 383 U.S. 1, 17-18 (1966). Although these factors are called “secondary” 
they are not secondary in importance, but merely secondary in the analysis. 
Truswal Sys. Corp. v. Hydro-Air Eng'g, Inc., 813 F.2d 1207, 1212 (Fed. Cir. 1987).  
Wilco is correct in asserting that Weeks does not address any of the secondary 
considerations required in the obviousness analysis. Wilco submits evidence of the 
profits earned from sales of its claimed invention (Rec. Docs. 127-2 – 127-10), 
testimony that the machines used prior to this device bore significant disadvantages 
suggesting a long-felt need for improvement (Rec. Doc. 127-1, at ¶¶ 6-11), and 
circumstantial evidence that EIK could have copied Wilco’s product in creating their 
machines which were subsequently sold to Weeks. Id. at ¶¶ 19-22. Therefore, 
because Wilco has produced evidence suggestive of the non-obviousness of the ‘801 
Patent, and because all inferences must be resolved in favor of the non-moving 
party, the Court finds that there is a genuine issue of material fact as to the 
obviousness of the ‘801 Patent.  
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CONCLUSION 
 Accordingly, Wilco’s Motion in Limine to Strike and Exclude Evidence (Rec. 
Doc. 126) is hereby DENIED. Weeks’ Motion for Summary Judgment (Rec. Doc. 
110) is also DENIED.  
New Orleans, Louisiana, this 21st day of December, 2022. 
 
       ____________________________________ 
       CARL J. BARBIER 
       UNITED STATES DISTRICT JUDGE 
 
 
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