DCT

1:26-cv-03061

North Sails Group LLC v. Team New Zealand Ltd

Log In
Key Events
Complaint
complaint Intelligence

I. Executive Summary and Procedural Information

  • Parties & Counsel:
  • Case Identification: 1:26-cv-03061, E.D. Va., 09/15/2026
  • Venue Allegations: Plaintiff alleges venue is proper because Defendants, as foreign entities, are subject to the court’s personal jurisdiction with respect to this action. Jurisdiction over Defendant TNZ is asserted under 35 U.S.C. § 293 for disputes affecting a U.S. patent, and over Defendant Collie under Fed. R. Civ. P. 4(k)(2) based on his contacts with the U.S., including entering agreements and filing a provisional patent application.
  • Core Dispute: Plaintiff seeks correction of inventorship and a declaration of ownership for a patent related to high-performance sail structures, alleging the patent was improperly filed by Defendants using Plaintiff's confidential information; in the alternative, Plaintiff seeks a declaration that the patent is invalid and unenforceable.
  • Technical Context: The dispute centers on advanced sail design for elite yacht racing, specifically the use of composite materials to create sails with variable stiffness for optimized aerodynamic performance.
  • Key Procedural History: The complaint follows warning letters sent by Defendant TNZ in July and August 2026 threatening patent infringement action against Plaintiff and its customers in the America's Cup. The complaint also references parallel proceedings initiated by Plaintiff, including a Petition for Post-Grant Review (PGR) of the patent-in-suit, litigation in Italy, and an opposition proceeding before the European Patent Office.

Case Timeline

Date Event
2017-08-18 Defendant Collie executes Confidentiality Agreement with Plaintiff North Sails
2017-11-09 North Sails adds polyester/aramid hybrid tapes ("Savage Tapes") to its proprietary materials table
2018-01-XX Defendant Collie attends North Sails' "MemBrain" workshop in the U.S.
2019-02-XX North Sails allegedly begins selling sails embodying the invention to Defendant TNZ
2020-12-17 Earliest Priority Date: U.S. Provisional Application 63/127,127 filed, naming Collie as sole inventor
2021-12-17 PCT Application PCT/IB2021/061985 filed
2023-06-16 Application for '089 Patent filed
2024-09-04 TNZ files a continuation application related to the '089 Patent family
2024-10-08 U.S. Patent No. 12,110,089 ('089 Patent) issues
2025-07-02 North Sails files Petition for Post-Grant Review (PGR2025-00062) of the '089 Patent
2026-07-31 Defendant TNZ sends first warning letter to America's Cup teams and North Sails
2026-08-25 Defendant TNZ sends second warning letter threatening litigation
2026-09-15 Complaint filed by North Sails

II. Technology and Patent(s)-in-Suit Analysis

  • Patent Identification: U.S. Patent No. 12,110,089 ("Sail Structure"), issued October 8, 2024.

The Invention Explained

  • Problem Addressed: The patent’s background section describes the need for sailors to adjust sail shape (camber) to suit different wind conditions '089 Patent, col. 1:24-28 It notes that while a deeper sail provides more thrust, it is desirable to flatten sails in high winds to reduce aerodynamic drag '089 Patent, col. 1:28-32
  • The Patented Solution: The invention is a sail constructed with two distinct regions made of different materials: a "luff region" (the sail's leading edge) made of a more elastic material, and the "remainder of the sail" made of a stiffer material '089 Patent, abstract '089 Patent, col. 1:40-43 When tension is applied to the luff (e.g., by a cunningham control line), the elastic luff region stretches more than the rest of the sail, which has the effect of flattening the sail and moving its deepest point forward to a more optimal aerodynamic position '089 Patent, col. 1:55-63 '089 Patent, col. 2:1-6
  • Technical Importance: This structure provides a wider range of sail shape control, allowing a single sail to be efficiently "powered down" in high winds, thereby improving performance across a broader spectrum of conditions '089 Patent, col. 1:17-23

Key Claims at a Glance

  • The complaint seeks a declaration of invalidity and unenforceability for all claims Compl. ¶105 and correction of inventorship for the patent generally Compl. ¶80 Independent claims 1 and 23 are foundational.
  • Independent Claim 1 recites:
    • A sail comprising a head, a tack, and a luff.
    • A luff region extending along the luff.
    • The luff region has a "higher degree of elasticity" compared to a remainder of the sail.
    • The luff region includes a "first material" and the remainder includes a "second material" that are different.
    • An "average stiffness" of the second material is in a range of 2-20 times higher than the "average stiffness" of the first material.
  • Independent Claim 23 recites a similar structure but defines the stiffness difference functionally: a ratio of the stiffness of regions "outside the luff region" and the stiffness of the "luff region" is in a range of 2-25 times greater.

III. The Accused Instrumentality

Product Identification

The instrumentalities at issue are high-performance sails designed and manufactured by Plaintiff North Sails, which Defendant TNZ has alleged fall within the scope of the ’089 Patent Compl. ¶1 Compl. ¶67 These include North Sails’ "3Di" sails supplied to teams competing in the America's Cup Compl. ¶4

Functionality and Market Context

  • The complaint describes North Sails' 3Di sails as "one-piece, 3D-molded membrane sails" constructed from "ultrathin spread-filament tapes and thermoset resin" Compl. ¶25
  • The design process utilizes North Sails' proprietary "NS Design Suite" software, which allows for the creation of sails with hundreds of regions, each formed by different combinations and orientations of tapes Compl. ¶6 Compl. ¶25 A key component of this technology is the "Savage Tapes," a family of hybrid tapes developed by a North Sails engineer that allows for a wide range of material properties, including significant differences in stiffness Compl. ¶¶38-41 This functionality is what North Sails alleges was misappropriated to form the basis of the ’089 Patent Compl. ¶50
  • The complaint asserts that North Sails is the exclusive sailmaker chosen by every team in the upcoming 38th America's Cup, underscoring the sails' commercial and competitive importance Compl. ¶12

IV. Analysis of Infringement Allegations

The complaint does not allege infringement but rather responds to infringement threats from Defendant TNZ Compl. ¶67 The following table summarizes the infringement theory TNZ would likely assert, mapping the ’089 Patent claims to the functionality of North Sails' own products as described in the complaint.

No probative visual evidence provided in complaint.

'089 Patent Infringement Allegations

Claim Element (from Independent Claim 1) Alleged Infringing Functionality Complaint Citation Patent Citation
a luff region ... wherein the luff region has a higher degree of elasticity compared to a remainder of the sail North Sails' 3Di sails are designed with specific tape layouts to create zones of varying elasticity and stiffness, including along the luff, using its NS Design Suite software. ¶6; ¶25 col. 1:46-50
wherein the luff region of the sail includes a first material and a remainder of the sail includes at least a second material, wherein the first material and the second material are different The sails are made from different types of "Savage Tapes," including hybrid tapes combining materials like polyester, aramid, and UHMWPE to achieve different mechanical properties in different regions. ¶38; ¶40 col. 2:32-37
wherein an average stiffness of the second material is in a range of 2-20 times higher than an average stiffness of the first material The complaint states that by late 2017, North Sails' proprietary materials data showed a "20 to 25 times difference in stiffness across different types of hybrid tapes," a concept allegedly developed by North Sails. ¶42 col. 12:27-32
  • Identified Points of Contention: The central disputes in this case are not about infringement mapping but rather about the patent's ownership and validity.
    • Inventorship Question: The primary issue is whether North Sails' employee, Matt Savage, should be named as a co-inventor. The complaint alleges he conceived of the hybrid tapes and their use to create sails with varying elasticity, which is the core concept of the patent Compl. ¶¶38-40 Compl. ¶80 This raises the question of whether Savage's contribution was significant enough to qualify him as a joint inventor under U.S. law.
    • Validity Question (On-Sale Bar): The complaint alleges that North Sails sold sails embodying the patented invention to Defendant TNZ beginning in 2019, more than one year before the patent's priority date of December 17, 2020 Compl. ¶¶62-64 This raises the question of whether these sales constitute an invalidating "on-sale bar" under 35 U.S.C. § 102, which, if proven, would render the patent invalid.
    • Enforceability Question (Inequitable Conduct): The complaint alleges that Defendants knew of Savage's contributions and the prior sales to TNZ but intentionally withheld this material information from the U.S. Patent and Trademark Office (PTO) with an intent to deceive Compl. ¶¶113-114 Compl. ¶118 This raises the question of whether this alleged act constitutes inequitable conduct, which could render the entire patent unenforceable.

V. Key Claim Terms for Construction

  • The Term: "higher degree of elasticity"

  • Context and Importance: This qualitative term is central to the invention's fundamental concept. Its construction will define how different the "luff region" must be from the "remainder of the sail" to fall within the scope of the claims.

  • Intrinsic Evidence for Interpretation:

    • Evidence for a Broader Interpretation: The specification states the term "elastic" means "being more deformable than a material not indicated as being elastic" '089 Patent, col. 3:53-57 This suggests that any measurable difference in deformability could satisfy the limitation.
    • Evidence for a Narrower Interpretation: Claim 1 provides a quantitative ratio, stating the "average stiffness" of the remainder is 2-20 times higher than the luff region '089 Patent, col. 12:27-32 A party could argue this quantifies and limits the meaning of "higher degree of elasticity" to a significant, non-trivial difference.

  • The Term: "average stiffness"

  • Context and Importance: This term appears in the quantitative limitation of independent claim 1. The method for calculating this "average" over a complex, non-uniform composite structure is critical for determining both infringement and validity. Practitioners may focus on this term because the complaint explicitly challenges it as being indefinite under 35 U.S.C. § 112 Compl. ¶104

  • Intrinsic Evidence for Interpretation:

    • Evidence for a Broader Interpretation: The patent does not provide an explicit formula for calculating "average stiffness." A party might argue that a person of ordinary skill in the art would understand how to determine a reasonable average for the specified regions.
    • Evidence for a Narrower Interpretation: The lack of a precise definition for how to "average" stiffness across a region made of composite, oriented fibers could be argued to render the claim indefinite. The patent mentions "average Youngs Modulus" '089 Patent, col. 2:16-17, but how to average this property across a non-homogenous area remains an open question that may require expert testimony.

VI. Other Allegations

  • Indirect Infringement: The complaint notes that Defendant TNZ’s warning letters accused North Sails of conduct that would amount to "at least indirect or in concert" infringement Compl. ¶67 This suggests TNZ's litigation strategy could involve claims of induced infringement against North Sails for supplying sails to competitors, who would be the direct infringers.
  • Willful Infringement: Willfulness is not alleged by the Plaintiff. Instead, the complaint alleges that Defendant TNZ’s infringement threats are objectively baseless and made in bad faith to disrupt North Sails' business relationships Compl. ¶134 The complaint further alleges that Defendants engaged in inequitable conduct by intentionally deceiving the PTO Compl. Count V

VII. Analyst’s Conclusion: Key Questions for the Case

This case presents a complex dispute over intellectual property rights rooted in allegations of betrayal and misappropriation within the high-stakes world of competitive sailing. The resolution will likely depend on the court's findings on the following central questions:

  • A threshold issue will be one of ownership and inventorship: will the court find that North Sails' employee, Matt Savage, was a co-inventor of the claimed subject matter, potentially leading to a correction of inventorship and a transfer of ownership rights from Defendants to Plaintiff?
  • A critical question of validity will be whether the sails sold by North Sails to Defendant TNZ in 2019 constitute an invalidating "on-sale bar" under 35 U.S.C. § 102, which would render the '089 Patent's claims invalid.
  • The case also raises a significant question of enforceability: does the evidence show that Defendants engaged in inequitable conduct by intentionally withholding material information from the PTO regarding alleged prior art sales and inventorship with an intent to deceive, which could render the entire patent unenforceable?