DCT
2:26-cv-01657
Nabrico Marine Products Inc v. WW Patterson Co
Key Events
Complaint
Table of Contents
complaint Intelligence
I. Executive Summary and Procedural Information
- Parties & Counsel:
- Plaintiff: NABRICO Marine Products, Inc. (Delaware)
- Defendant: W. W. Patterson Company (Pennsylvania)
- Plaintiff's Counsel: K&L Gates LLP; Paul Hastings LLP
- Case Identification: 2:26-cv-01657, W.D. Pa., 08/06/2026
- Venue Allegations: Venue is alleged to be proper in the Western District of Pennsylvania because Defendant resides in the district, offers the accused products for sale there, and maintains a regular and established place of business within the district.
- Core Dispute: Plaintiff alleges that Defendant's barge winches infringe two patents related to an innovative winch tightening mechanism that improves operator safety and efficiency.
- Technical Context: The technology concerns manually operated winches used in the marine barge industry to connect barges and tension wire lines, a field where operator leverage and safety are significant concerns.
- Key Procedural History: The complaint alleges that Defendant, Plaintiff's direct competitor, hired one of Plaintiff's former sales managers in September 2022. Subsequently, in May 2026, Defendant allegedly debuted a "copycat" winch and began marketing it to Plaintiff's existing customers, leading to at least one postponed order.
Case Timeline
| Date | Event |
|---|---|
| 2016-04-22 | Priority Date for '476 and '753 Patents |
| 2017-01-01 | Plaintiff begins selling FASST Winder Winch |
| 2020-08-25 | U.S. Patent No. 10,752,476 Issued |
| 2022-09-01 | Plaintiff's former sales manager begins working for Defendant |
| 2024-03-05 | U.S. Patent No. 11,919,753 Issued |
| 2026-05-27 | Defendant debuts accused winch at IMX trade show |
| 2026-06-26 | A customer informs Plaintiff of Defendant's offer |
| 2026-08-06 | Complaint for Patent Infringement Filed |
II. Technology and Patent(s)-in-Suit Analysis
U.S. Patent No. 10,752,476 ("the '476 Patent")
- Patent Identification: U.S. Patent No. 10,752,476, "WINCH TIGHTENING MECHANISM," issued August 25, 2020 Compl. ¶25
- The Invention Explained:
- Problem Addressed: The patent's background describes the shortcomings of conventional manual barge winches Compl. ¶¶13-15 Traditional methods for generating high tension, such as large spoked handwheels or separate "cheater bars," are described as being bulky, inefficient, and presenting a significant risk of injury to operators '476 Patent, col. 1:44-2:16
- The Patented Solution: The invention is a winch apparatus with an integrated secondary tensioning mechanism designed to be safer and more ergonomic Compl. ¶17 The solution centers on a "mounting plate" coupled to the winch's drive shaft, to which a "first moment arm" (a hand lever) and often a second moment arm (a foot pedal) are attached '476 Patent, col. 5:2-6 This allows an operator to use both their arms and legs to apply greater force through a pawl and ratchet system Compl. ¶24 A key feature is a counterweight designed to automatically disengage the pawl and return the levers to a safe rest position '476 Patent, abstract '476 Patent, col. 7:16-24 The complaint includes a figure from the patent illustrating this concept Compl. ¶24
- Technical Importance: The design aims to provide the high leverage of older, unsafe methods but within a compact, integrated system that reduces operator fatigue and the risk of injury from overextension or uncontrolled movement '476 Patent, col. 4:8-17
- Key Claims at a Glance:
- The complaint asserts independent claim 1 and reserves the right to assert others Compl. ¶27 Compl. ¶41
- Essential Elements of Claim 1:
- a winch housing;
- a winch drum rotationally coupled to the housing by a drive shaft;
- a ratchet gear coupled to the drive shaft;
- a mounting plate rotationally coupled to the drive shaft;
- a first moment arm coupled to the mounting plate to provide leverage;
- a pawl pivotally coupled to the mounting plate that engages/disengages the ratchet gear; and
- a counterweight coupled to the mounting plate to return it to a rest position.
U.S. Patent No. 11,919,753 ("the '753 Patent")
- Patent Identification: U.S. Patent No. 11,919,753, "WINCH TIGHTENING MECHANISM," issued March 5, 2024 Compl. ¶28
- The Invention Explained:
- Problem Addressed: As a continuation of the application leading to the '476 Patent, the '753 Patent addresses the same problems of safety and inefficiency in conventional barge winches Compl. ¶28 '753 Patent, col. 1:21-2:18
- The Patented Solution: The solution is structurally similar to that of the '476 Patent, involving an integrated mechanism with hand and foot levers, a pawl, and a counterweight '753 Patent, abstract The key distinction in the asserted claim is the point of attachment. Claim 1 of the '753 Patent describes the first moment arm, pawl, and counterweight as being coupled directly to the drive shaft, rather than to an intermediate "mounting plate" as in the '476 Patent '753 Patent, col. 15:35-51
- Technical Importance: This alternate construction provides another means of achieving the same stated goals of improved ergonomic efficiency and operator safety in a high-leverage winch mechanism '753 Patent, col. 4:4-16
- Key Claims at a Glance:
- The complaint asserts independent claim 1 and reserves the right to assert others Compl. ¶30 Compl. ¶50
- Essential Elements of Claim 1:
- a winch housing;
- a winch drum rotationally coupled to the housing by a drive shaft;
- a ratchet gear coupled to the drive shaft;
- a first moment arm coupled to the drive shaft to provide leverage;
- a pawl coupled to the drive shaft that engages/disengages the ratchet gear; and
- a counterweight coupled to the drive shaft to return it to a rest position.
III. The Accused Instrumentality
- Product Identification: The accused instrumentalities are Defendant's tanker and hopper barge winches Compl. ¶37 The complaint specifically identifies a winch for hopper barges that was allegedly debuted at an industry trade show in May 2026 Compl. ¶33
- Functionality and Market Context: The complaint alleges that the accused winches are "strikingly similar, if not identical," to Plaintiff's own FASST Winder Winch and incorporate its "patented hand lever and foot pedal design" Compl. ¶33 Compl. ¶35 To support this, the complaint provides a side-by-side photographic comparison. Figure 2 in the complaint presents a side-by-side photographic comparison of the accused Patterson winch (left) and the Plaintiff's FASST 40 Winder Winch (right) Compl. ¶33 The complaint positions the market for these products as effectively a "two-competitor market" comprising only Plaintiff and Defendant Compl. ¶31 It is further alleged that Defendant's actions have already caused a significant customer to postpone a substantial order with Plaintiff to evaluate Defendant's competing offer Compl. ¶7 Compl. ¶36
IV. Analysis of Infringement Allegations
The complaint alleges infringement of both the '476 and '753 patents, asserting that the Defendant's winches embody the claimed inventions. Although the complaint references a claim chart exhibit that was not provided with the filing, the core infringement theory can be constructed from the claim language and photographic evidence included in the complaint.
'476 Patent Infringement Allegations
| Claim Element (from Independent Claim 1) | Alleged Infringing Functionality | Complaint Citation | Patent Citation |
|---|---|---|---|
| a mounting plate rotationally coupled to the drive shaft | The accused winch includes a plate-like structure to which the levers are attached, which is alleged to be the claimed mounting plate Compl. ¶¶33, 35 | ¶27 | col. 6:33-38 |
| a first moment arm coupled to the mounting plate and configured to provide leverage for rotating the mounting plate | The accused winch features an upper "hand lever" for operator use, which is alleged to be the claimed first moment arm Compl. ¶35 | ¶27 | col. 5:49-51 |
| a pawl pivotally coupled to the mounting plate that engages the ratchet gear... and disengages... | The accused winch's lever system operates a mechanism to engage a ratchet gear, which is alleged to be the claimed pawl Compl. ¶¶33, 35 | ¶27 | col. 6:40-44 |
| a counterweight coupled to the mounting plate positioned to... return the mounting plate and first moment arm to a rest position | The accused winch includes a weighted arm on its lever assembly, alleged to be the claimed counterweight that performs the recited function Compl. ¶¶33, 35 | ¶27 | col. 6:37-38 |
'753 Patent Infringement Allegations
| Claim Element (from Independent Claim 1) | Alleged Infringing Functionality | Complaint Citation | Patent Citation |
|---|---|---|---|
| a first moment arm coupled to the drive shaft and configured to provide leverage for rotating the drive shaft | The accused winch's upper "hand lever" is alleged to be coupled to the drive shaft to provide leverage Compl. ¶35 | ¶30 | col. 5:52-54 |
| a pawl coupled to the drive shaft that engages the ratchet gear... and disengages... | The accused winch's lever system, which engages a ratchet gear, is alleged to be coupled to the drive shaft Compl. ¶¶33, 35 | ¶30 | col. 6:40-45 |
| a counterweight coupled to the drive shaft the counterweight positioned to... return the first moment arm to a rest position | The accused winch's weighted arm is alleged to be coupled to the drive shaft and performs the recited function Compl. ¶¶33, 35 | ¶30 | col. 6:37-38 |
- Identified Points of Contention:
- Scope Questions: A primary point of contention may arise from the differing claim language between the two asserted patents. The '476 Patent requires the lever mechanism be coupled to a "mounting plate," while the '753 Patent requires it be coupled to the "drive shaft." Plaintiff has asserted both, suggesting uncertainty about the precise mechanical construction of the accused winch. The ultimate determination of infringement may depend on whether the accused product's lever assembly is found to be attached to a distinct, rotating plate (implicating the '476 Patent) or is more directly integrated with the drive shaft assembly (implicating the '753 Patent).
- Technical Questions: The complaint alleges the accused product is "strikingly similar" based on visual inspection Compl. ¶33 A key question for the court will be whether this visual similarity translates to technical and functional identity with respect to every element of the asserted claims. For example, evidence will be required to show that the accused product's visible counterweight performs the specific claimed function of returning the lever assembly "to a rest position" to "disengage the pawl," as required by both patents.
V. Key Claim Terms for Construction
The Term: "mounting plate" (in the '476 Patent)
Context and Importance: The construction of this term is critical because it represents the primary architectural distinction between the asserted claims of the '476 and '753 patents. Practitioners may focus on this term because its presence or absence in the accused device could determine which patent, if any, is infringed.
Intrinsic Evidence for Interpretation:
- Evidence for a Broader Interpretation: The claim recites the element as "a mounting plate rotationally coupled to the drive shaft" '476 Patent, claim 1 Plaintiff may argue this language is broad enough to encompass any plate-like component that serves as an attachment point for the levers and rotates with the shaft, regardless of its specific form.
- Evidence for a Narrower Interpretation: The specification's detailed description and figures show "inner mounting plate 42 and outer mounting plate 44" as distinct components in an assembly '476 Patent, col. 6:33-35 '476 Patent, Fig. 6 Defendant may argue that the term requires a structure that is identifiably separate from other components like the drive shaft itself.
The Term: "coupled to the drive shaft" (in the '753 Patent)
Context and Importance: This term is the counterpart to "mounting plate" and is equally critical. Its interpretation will define the scope of the '753 patent relative to both the '476 patent and the accused device. Practitioners may focus on this term because its construction will determine how direct the connection between the lever arms and the drive shaft must be.
Intrinsic Evidence for Interpretation:
- Evidence for a Broader Interpretation: Plaintiff could argue that "coupled to" is a general term of connection and does not preclude the existence of intermediate components, so long as the assembly functions to transfer torque from the levers to the drive shaft.
- Evidence for a Narrower Interpretation: Defendant could argue that the prosecution history, which includes the related '476 patent with its specific "mounting plate" limitation, implies that "coupled to the drive shaft" was chosen for the '753 patent to claim a different, more direct connection. Therefore, if the accused device is found to have the '476 patent's "mounting plate," it may not meet the narrower "coupled to the drive shaft" limitation.
VI. Other Allegations
- Indirect Infringement: The complaint alleges that Defendant induces and contributes to infringement by manufacturing, selling, and offering for sale the accused winches Compl. ¶41 Compl. ¶50 It is alleged that Defendant intended for its customers to use the products in an infringing manner Compl. ¶43 Compl. ¶52
- Willful Infringement: The complaint alleges willful infringement based on Defendant having actual or constructive notice of the patents Compl. ¶42 Compl. ¶51 The factual basis for this allegation is Defendant's hiring of a former NABRICO sales manager in September 2022, from which Plaintiff alleges Defendant has been "on notice of the FASST Winder Winches and patents-in-suit" Compl. ¶39
VII. Analyst's Conclusion: Key Questions for the Case
This case presents several focused questions for the court, hinging on specific mechanical details and the timing of alleged knowledge.
A central issue will be one of structural interpretation: Does the accused winch's lever mechanism attach to a distinct "mounting plate" as claimed in the '476 patent, or is it more accurately described as being "coupled to the drive shaft" as claimed in the '753 patent? The outcome of the infringement analysis may depend heavily on the court's construction of these competing terms and the evidence revealed about the accused product's internal design.
A key evidentiary question will concern willfulness and pre-suit knowledge: The complaint ties its willfulness allegation to the Defendant's hiring of a former employee of the Plaintiff. The viability of the claim for enhanced damages will likely depend on what evidence is presented to establish what specific knowledge of the patents-in-suit, if any, the former employee possessed and communicated to the Defendant prior to the filing of the lawsuit.
Analysis metadata
Loading Complaint
Suggested improvements