Werner Co v. Frenchcreek Production Inc

I. Executive Summary and Procedural Information

• Parties & Counsel:
  • Plaintiff: Werner Co. (Delaware)
  • Defendant: FrenchCreek Production, Inc. (Pennsylvania)
  • Plaintiff’s Counsel: Houston Harbaugh, P.C.
• Case Identification: 1:26-cv-00269, W.D. Pa., 09/25/2026
• Venue Allegations: Venue is alleged to be proper in the Western District of Pennsylvania because the defendant is a Pennsylvania corporation, maintains a regular and established place of business in the district, and has allegedly committed acts of infringement within the district.
• Core Dispute: Plaintiff alleges that Defendant’s 1772 Reusable Concrete Hole Anchor infringes four U.S. patents related to expansion bolts and associated pivot and swivel mechanisms for fall protection equipment.
• Technical Context: The technology concerns mechanical anchors inserted into structures like concrete to provide a secure, temporary tethering point for workers using fall protection harnesses and lanyards.
• Key Procedural History: The complaint alleges that Plaintiff provided Defendant with notice of infringement of the Asserted Patents on or around April 27, 2026, approximately five months before filing the lawsuit.

Case Timeline

Date	Event
2020-10-28	Earliest Priority Date for all Asserted Patents
2022-09-20	U.S. Patent No. 11,446,526 Issues
2023-11-07	U.S. Patent No. 11,807,499 Issues
2024-10-29	U.S. Patent No. 12,129,880 Issues
2024-10-29	U.S. Patent No. 12,129,152 Issues
2026-04-27	Plaintiff Notifies Defendant of Alleged Infringement
2026-09-25	Complaint Filed

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

U.S. Patent No. 12,129,880 - "Expansion Bolt and Pivot and Swivel Mechanism Therefor"

• Issued: October 29, 2024

The Invention Explained

• Problem Addressed: The patent background describes a need for a reusable anchoring device that avoids the dangers of "cross-loading"—a condition where bending stress is applied to an anchor, which can lead to catastrophic failure—while being more convenient than prior art that required tools for removal (’880 Patent, col. 1:20-24; ’880 Patent, col. 2:12-16).
• The Patented Solution: The invention is an expansion bolt with a central shaft ending in a wedge, which is drawn into a set of expandable "spoons" to anchor the device inside a hole. To solve the cross-loading problem, the design incorporates a "ring element" at the top that is "swivelly attached" to the central shaft, allowing the tether point to rotate around the bolt's longitudinal axis to align with a load. ’880 Patent, abstract ’880 Patent, col. 4:1-5
• Technical Importance: This design aims to enhance worker safety by creating a reusable anchor that can better accommodate off-axis loads without compromising its grip within a structure.

Key Claims at a Glance

• The complaint asserts independent claim 1 Compl. ¶22
• The essential elements of claim 1 include:
  • A base.
  • A plurality of elongate members extending from the base and terminating in spoons, with at least one member and spoon being integrally formed as a single piece.
  • A central shaft member with a wedge member at its end, where the spoons form a cavity to receive the wedge and are structured to move outward when the wedge enters.
  • A ring element swivelly attached to the central shaft member, allowing it to swivel about the shaft's longitudinal axis.
• The complaint alleges infringement of "one or more claims," suggesting the potential to assert other claims later Compl. ¶21

U.S. Patent No. 12,129,152 - "Expansion Bolt and Pivot and Swivel Mechanism Therefor"

• Issued: October 29, 2024

The Invention Explained

• Problem Addressed: This patent addresses the same general problems as the ’880 Patent but adds refinements for operational security. Specifically, it addresses the risk of an anchor slipping out of a hole due to minor surface crumbling or deformation under load (’152 Patent, col. 2:3-9).
• The Patented Solution: The invention is a similar expansion bolt but adds several key features recited in the claims. It explicitly includes a "biasing member" (e.g., a spring) to apply constant tension, keeping the wedge engaged with the spoons and the anchor securely set. It also distinctly claims a "swivel attachment" as the structure for connecting the ring element and specifies the geometry of how the central shaft extends through the assembly. ’152 Patent, abstract ’152 Patent, claim 1
• Technical Importance: The biasing member provides a "pre-loaded" configuration that actively resists minor slippage, adding a layer of safety and allowing for reliable single-handed operation ’152 Patent, col. 2:9-15

Key Claims at a Glance

• The complaint asserts independent claim 1 Compl. ¶35
• The essential elements of claim 1 include:
  • A base, elongate members with spoons, and a central shaft with a wedge, similar to the ’880 Patent.
  • A ring element swivelly attached to the central shaft.
  • A "swivel attachment" structured to swivelly attach the ring element.
  • A "biasing member" for biasing the central shaft relative to the base.
  • A positional limitation wherein the central shaft extends upward through the swivel attachment to the top of the bolt.
• The complaint alleges infringement of "one or more claims" Compl. ¶34

U.S. Patent No. 11,807,499 - "Expansion Bolt and Pivot and Swivel Mechanism Therefor"

• Issued: November 7, 2023 Compl. ¶12

Technology Synopsis

This patent focuses on the specific construction of the "pivot and swiveling mechanism." It describes a ring element with "foot portions" that are captured within a "swivel housing element." This assembly is secured by a "capping element" that interlocks with the housing to resist being pulled apart, creating a durable multi-axis joint. (’499 Patent, abstract; ’499 Patent, claim 1).

Asserted Claims

Independent claim 1 Compl. ¶51

Accused Features

The complaint accuses the mechanism that connects the D-ring to the body of the anchor, specifically identifying the ring, leg members, swivel housing, capping element, and shaft of the accused product Compl. ¶¶54-58

U.S. Patent No. 11,446,526 - "Expansion Bolt and Pivot and Swivel Mechanism Therefor"

• Issued: September 20, 2022 Compl. ¶13

Technology Synopsis

This patent focuses on the structural design of the expandable portion of the anchor. To achieve both the flexibility needed for repeated elastic bending (for reusability) and the strength needed to resist crushing under load, the invention describes "elongate elastic members" that are "substantially less" thick at their points of joinder to the base and spoons than the base and spoons themselves. (’526 Patent, abstract; ’526 Patent, col. 11:24-34).

Asserted Claims

Independent claim 1 Compl. ¶65

Accused Features

The complaint accuses the anchor's main body, identifying the housing, base, "radially spreadable elongate elastic members," spoons, and central shaft Compl. ¶¶68-70

III. The Accused Instrumentality

Product Identification

The "1772 Reusable Concrete Hole Anchor" and all substantially similar products made, used, or sold by Defendant FrenchCreek Production, Inc. Compl. ¶1

Functionality and Market Context

• Based on the allegations, the accused product is a mechanical fall-protection anchor designed for insertion into pre-drilled holes in concrete Compl. ¶1 The complaint includes several annotated photographs of a disassembled unit, identifying its key components. A photograph shows the accused product's main body, including its base, elongate members, and spoons Compl. ¶6 Another photograph shows the central shaft with its wedge member, the D-ring attachment, and a spring identified as the biasing member Compl. ¶13 The functionality appears to directly mirror that described in the patents: a user inserts the device into a hole, and tension on the ring element draws the wedge into the spoons, forcing them to expand and grip the hole.
• The complaint alleges that FrenchCreek is a direct competitor that manufactures, uses, and sells the infringing products in the United States Compl. ¶15

IV. Analysis of Infringement Allegations

U.S. Patent No. 12,129,880 Infringement Allegations

Claim Element (from Independent Claim 1)	Alleged Infringing Functionality	Complaint Citation	Patent Citation
An expansion bolt, comprising: a base;	The accused product is identified as an expansion bolt with a base. A photograph displays the component labeled "base."	¶25	col. 6:10-12
a plurality of elongate members extending distally from the base, the elongate members distally terminating in respective spoons, at least one of the elongate members being integrally formed together with its respective spoon as a single piece of material;	The accused product is alleged to have multiple elongate members ending in spoons. A photograph shows these components.	¶26	col. 6:12-18
a central shaft member extending between the elongate members and terminating in a wedge member, the spoons defining a cavity for receiving the wedge member, the elongate members structured to move outwardly in response to the wedge member moving into the cavity; and	The accused product is alleged to have a central shaft with a wedge that engages a cavity formed by the spoons to cause outward expansion. A photograph identifies the "Central shaft member" and "Wedge member."	¶27	col. 5:61-64
a ring element swivelly attached to the central shaft member, to allow for swivelling the ring element about a longitudinal axis of the central shaft member.	The accused product is alleged to have a ring element connected via a swivel attachment. A photograph identifies the "Ring element" and "Swivel attachment."	¶28	col. 8:25-28

U.S. Patent No. 12,129,152 Infringement Allegations

Claim Element (from Independent Claim 1)	Alleged Infringing Functionality	Complaint Citation	Patent Citation
...a ring element swivelly attached to the central shaft member, to allow for swivelling the ring element about a longitudinal axis of the central shaft member;	The accused product is alleged to possess a ring element attached to the central shaft, allowing for swiveling motion. A photograph identifies the "Ring element."	¶41	col. 7:44-51
a swivel attachment structured to swivelly attach the ring element about the longitudinal axis of the central shaft member; and	The accused product's connection between the ring and shaft is identified as the claimed "swivel attachment."	¶42	col. 9:31-41
a biasing member for biasing the central shaft member relative to the base,	The accused product is alleged to contain a spring that functions as the biasing member. A photograph explicitly labels a spring component as the "Biasing member."	¶43	col. 6:6-9
wherein the central shaft member extends upward through the swivel attachment and past near ends of the elongate member to a top of the expansion bolt.	The complaint alleges the accused product's central shaft is arranged in the claimed configuration. A photograph shows the fully assembled product.	¶44	col. 14:10-15

Identified Points of Contention

• Scope Questions: A central question may be whether the accused product's components meet the specific structural definitions in the claims. For the '499 Patent, this could involve whether the accused swivel mechanism possesses the claimed "interlocking" feature designed to "resist pulling the capping element apart" Compl. ¶52 For the '526 Patent, the dispute may center on whether the accused anchor's "elongate elastic members" are "substantially less" thick at their joinder points than the base and spoons, a relative term that may require judicial construction Compl. ¶66
• Technical Questions: The infringement allegations appear to be based on a high degree of visual and functional similarity between the patented inventions and the accused product. A key technical question will be whether discovery reveals any subtle but material differences in the manufacturing, materials, or operation of the accused device that could distinguish it from the claims. For example, evidence of how the accused product's expandable members are made (e.g., assembled vs. integrally formed) could become a focal point.

V. Key Claim Terms for Construction

Term: "integrally formed together... as a single piece of material"

(from ’880 Patent, Claim 1; ’152 Patent, Claim 1)

• Context and Importance: This term dictates the construction of the expandable portion of the anchor. Practitioners may focus on this term because the defendant could argue its product is assembled from multiple, separately-formed components that are later joined, rather than being created as a "single piece," thereby attempting to design around the claim.
• Intrinsic Evidence for Interpretation:
  • Evidence for a Broader Interpretation: The claim language does not specify a particular manufacturing method (e.g., machining from billet, casting, molding). A plaintiff may argue that as long as the final component is a single, continuous piece of material, it meets the limitation, regardless of the process.
  • Evidence for a Narrower Interpretation: The specification notes that forming the housing "integrally or monolithically with the body, in a single piece of material... provides manufacturing cost advantages" ’526 Patent, col. 11:60-64 A defendant may argue this context ties the term to a specific monolithic manufacturing process and that their different, potentially multi-step assembly process falls outside that scope.

Term: "swivel attachment"

(from ’152 Patent, Claim 1)

• Context and Importance: The '152 patent adds this as a distinct limitation not present in the '880 patent, making its definition critical. The dispute will turn on whether the accused product's components for connecting the ring to the shaft constitute a "swivel attachment" as claimed.
• Intrinsic Evidence for Interpretation:
  • Evidence for a Broader Interpretation: The term is not explicitly defined in the patent, which may support an argument that it should be given its plain and ordinary meaning, encompassing any structure that serves to attach the ring element in a way that allows it to swivel.
  • Evidence for a Narrower Interpretation: The specification describes a specific embodiment of a swivel mechanism comprising a "swivel housing" (156) and a "cap" (158) that interlock ’152 Patent, col. 9:31-41 ’152 Patent, Figs. 15-17 A defendant could argue that the term "swivel attachment" should be construed to mean this specific structure or a structural equivalent, not merely any component that facilitates swiveling.

VI. Other Allegations

• Indirect Infringement: The complaint does not plead a specific count for indirect infringement (induced or contributory infringement). The allegations focus on direct infringement by "making, using, selling, offering to sell, and/or importing" the Accused Products Compl. ¶21 Compl. ¶34 Compl. ¶50 Compl. ¶64
• Willful Infringement: The complaint alleges willful infringement for all four asserted patents. The factual basis for this allegation is Defendant's alleged continued infringement after receiving actual notice from Plaintiff on or around April 27, 2026 Compl. ¶16 Compl. ¶17 Compl. ¶29

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

• A primary issue will be one of structural and factual correspondence: Given the complaint’s detailed photographic evidence suggesting a high degree of similarity, the case may turn on whether the defendant can establish subtle but legally significant differences in the structure or manufacture of its anchor. Key battlegrounds could include the "interlocking" nature of the swivel mechanism (as claimed in the '499 patent) and the precise thickness ratios of the expandable "leaves" (as claimed in the '526 patent), which will likely require expert measurement and testimony.
• A second core issue will be one of definitional scope during claim construction: The court's interpretation of the term "integrally formed... as a single piece of material" will be critical. The question is whether this term encompasses any resulting single-piece component or is implicitly limited by the specification to a specific monolithic manufacturing process, potentially creating a non-infringement defense if the accused product is assembled differently.