DCT
2:26-cv-09429
Pair Eyewear Inc v. Stoggles Inc
Key Events
Complaint
Table of Contents
complaint Intelligence
I. Executive Summary and Procedural Information
- Parties & Counsel:
- Plaintiff: Pair Eyewear, Inc. (Delaware)
- Defendant: Stoggles Inc., d/b/a OTHERFRAME (Delaware)
- Plaintiff's Counsel: Knobbe, Martens, Olson & Bear, LLP
- Case Identification: 2:26-cv-09429, C.D. Cal., 08/24/2026
- Venue Allegations: Venue is alleged to be proper in the Central District of California because Defendant maintains its corporate headquarters and a regular and established place of business in the district, and has allegedly committed acts of infringement by selling or offering to sell accused products within the district.
- Core Dispute: Plaintiff alleges that Defendant's customizable eyewear, which features magnetically swappable decorative fronts, infringes a patent related to a removably attachable top frame for eyewear.
- Technical Context: The technology at issue addresses the market for modular eyewear, where users can alter the aesthetic appearance of a single pair of base frames by attaching different decorative top frames.
- Key Procedural History: The complaint states that on March 25, 2026, Plaintiff sent a letter to Defendant identifying the patent-in-suit and alleging infringement. Plaintiff further alleges that Defendant responded but refused to cease its allegedly infringing activities.
Case Timeline
| Date | Event |
|---|---|
| 2017-01-01 | Plaintiff Pair Eyewear founded |
| 2021-10-27 | Priority Date for U.S. Patent No. 11,762,223 |
| 2023-09-19 | U.S. Patent No. 11,762,223 Issued |
| 2026-01-01 | Defendant OTHERFRAME founded |
| 2026-03-25 | Plaintiff sends notice letter to Defendant |
| 2026-08-24 | Complaint Filed |
II. Technology and Patent(s)-in-Suit Analysis
- Patent Identification: U.S. Patent No. 11,762,223 ("Removably Attachable Top Frame for Eyewear"), issued September 19, 2023. Compl. ¶6 Compl. ¶12
- The Invention Explained:
- Problem Addressed: The patent's background section notes that for many consumers, the price of eyeglasses makes it impractical to own multiple pairs to suit different fashion trends or artistic expressions, particularly for those who require prescription lenses. '223 Patent, col. 1:19-28
- The Patented Solution: The invention proposes a modular eyewear system comprising a standard "base frame" (which holds prescription or non-prescription lenses) and a separate, lens-less decorative "top frame." '223 Patent, col. 1:45-56 This top frame is designed to magnetically and removably attach to the anterior surface of the base frame, effectively masking the base frame and providing a new aesthetic appearance without requiring the user to purchase a full new pair of glasses. '223 Patent, abstract '223 Patent, Fig. 1
- Technical Importance: This system allows a user to economically and repeatedly customize the look of a single pair of functional eyeglasses by acquiring and swapping multiple, less expensive decorative top frames. '223 Patent, col. 1:33-44
- Key Claims at a Glance:
- The complaint asserts infringement of at least Claim 1 of the '223 Patent. Compl. ¶23
- The essential elements of independent Claim 1, a method claim, include:
- Providing a top frame with lens-less openings, a bridge, a curved posterior surface, and at least two magnets.
- Enabling a user to align the top frame with a base eyewear to induce a magnetic attractive force.
- A requirement that the top frame is "more flexible" than the base eyewear.
- A requirement that the top frame's "pre-attached shape" corresponds to and "closely fits" the base eyewear's surface without being "contorted."
- A requirement that, when attached, the top frame has no part extending behind the anterior surface of the base eyewear.
- The complaint also specifically alleges infringement of dependent Claims 5, 6, and 7, which add limitations regarding the material properties of the top frame. Compl. ¶¶31-33
III. The Accused Instrumentality
- Product Identification: The complaint identifies the "Infringing Products" as a variety of eyeglasses and sunglasses sold by Defendant under the name OTHERFRAME, including the "Roen," "Eiko," "Matera," "Ferro," "Heath," and "Gia" models. Compl. ¶13 Compl. ¶16 Compl. ¶22
- Functionality and Market Context: The accused products are described as customizable eyewear that, similar to Plaintiff's products, consist of a base frame and a swappable, magnetic front piece or "top frame." Compl. ¶9 Compl. ¶13 The complaint highlights Defendant's marketing materials, such as "Snap. Transform," which allegedly instruct users to "Snap on a new front magnetically." Compl. p. 10 A screenshot from Defendant's website explains, "The fronts connect to the base frame magnetically. To swap, simply pull the current front off and place the new one on." Compl. p. 9 The complaint alleges Defendant is a very recent entrant into this market. Compl. ¶15
IV. Analysis of Infringement Allegations
The complaint provides a series of annotated images to allege that Defendant's "Roen" product line infringes Claim 1 of the '223 Patent. For instance, an image in the complaint identifies the magnets on the accused top frame. Compl. p. 8 Another image illustrates the separate top frame and corresponding base eyewear. Compl. p. 6 A further annotated image from the complaint identifies the accused top frame's left and right openings and the bridge between them. Compl. p. 7
'223 Patent Infringement Allegations
| Claim Element (from Independent Claim 1) | Alleged Infringing Functionality | Complaint Citation | Patent Citation |
|---|---|---|---|
| providing a top frame comprising: a left opening without a lens and a right opening without a lens; a bridge positioned between the left and right openings; | The accused top frame is shown with two lens-less openings and a connecting bridge. | ¶24 | col. 1:57-63 |
| a curved posterior surface; | An image is provided to show that the posterior surface of the accused top frame is curved. | ¶25 | col. 9:10-12 |
| at least two magnets; | The accused top frame is alleged to include two magnets, as shown in an annotated product image. | ¶26 | col. 7:13-18 |
| enabling the user to align the top frame with the base eyewear such that the magnets...induce an attractive force between the posterior surface of the top frame and a curved anterior surface of the base eyewear; | Defendant's website and product images allegedly show the top frame aligning and attaching magnetically to the base eyewear. | ¶27 | col. 7:45-51 |
| wherein the top frame is more flexible than the base eyewear; | The complaint makes a conclusory allegation that the accused top frame is more flexible than the base eyewear. | ¶28 | col. 10:1-3 |
| wherein the posterior surface of the top frame comprises a pre-attached shape that corresponds to the anterior surface of the base eyewear...without requiring the top frame to be contorted...; | The complaint alleges the accused top frame's posterior surface has a pre-set shape that closely fits the base eyewear's anterior surface without needing to be bent or forced into place. | ¶29 | col. 9:25-42 |
| wherein, when the top frame is attached to the base eyewear, the top frame has no part that extends in a posterior direction past the anterior surface of the base eyewear. | An image is presented to allege that no part of the attached top frame extends behind the front surface of the base eyewear. | ¶30 | col. 11:2-6 |
- Identified Points of Contention:
- Scope Questions: The claim requires the "top frame" to be "more flexible" than the "base eyewear." A central question will be how "flexible" is defined and measured. The patent's specification discusses technical metrics like bending stiffness and tensile modulus, which may inform the court's construction of this comparative term. '223 Patent, col. 12:43-52
- Technical Questions: Claim 1 requires the top frame's shape to "correspond" to the base eyewear's surface such that it "closely fits" without being "contorted." The complaint alleges this is met Compl. ¶29, but the degree of "fit" and the meaning of "contorted" are potential points of factual dispute that may require expert testimony and detailed physical comparison of the products.
V. Key Claim Terms for Construction
- The Term: "more flexible"
- Context and Importance: This relative term is a key point of distinction between the two core components of the claimed invention. The outcome of the case may hinge on whether the accused top frame is found to meet this limitation relative to its base eyewear under the court's adopted definition.
- Intrinsic Evidence for Interpretation:
- Evidence for a Broader Interpretation: The specification describes the top frame as "highly bendable, resilient, and/or flexible," which could suggest a non-technical, ordinary understanding of the term. '223 Patent, col. 10:42-44
- Evidence for a Narrower Interpretation: The specification also provides technical definitions, stating that "Bending stiffness (EI) is the term used to describe the flexural rigidity" and "Tensile modulus (EF) is calculated from the initial slope of the load-deflection curve." '223 Patent, col. 12:43-48 A party may argue that "flexible" should be construed in light of these more precise, engineering-based concepts.
- The Term: "closely fits"
- Context and Importance: This term is critical for defining the physical interface between the top frame and the base eyewear. Infringement depends on how tight the required tolerance is between the two components.
- Intrinsic Evidence for Interpretation:
- Evidence for a Broader Interpretation: Language describing an "integral appearance" where the two components "appear...to be one component" could support a construction based on visual appearance to a lay observer. '223 Patent, col. 10:2-9
- Evidence for a Narrower Interpretation: The specification states that the surfaces can "contact or closely fit... along generally all or substantially all of the perimeters" and that "essentially no space, gap, and/or distance exists between them." '223 Patent, col. 9:32-40 This language may support a narrower construction requiring a near-perfect geometric nesting between the two frames.
VI. Other Allegations
- Indirect Infringement: The complaint alleges both induced and contributory infringement. The inducement claim is based on Defendant's alleged affirmative acts of marketing, distributing, and providing instructions that encourage customers to combine the top frames and base eyewear in an infringing manner. Compl. ¶35 The contributory infringement claim alleges the accused products are not staple articles of commerce and have no substantial non-infringing use. Compl. ¶36
- Willful Infringement: The willfulness allegation is predicated on pre-suit knowledge. The complaint asserts that Plaintiff sent Defendant a letter on March 25, 2026, providing actual notice of the '223 Patent and its infringement, and that Defendant's allegedly infringing conduct continued thereafter. Compl. ¶17 Compl. ¶19 Compl. ¶34
VII. Analyst's Conclusion: Key Questions for the Case
This case appears to center on the specific technical and physical characteristics of the accused modular eyewear system. The key questions for the court will likely be:
- A central question will be one of comparative properties: Can Plaintiff establish, through expert testing and analysis, that the accused top frame is demonstrably "more flexible" than the corresponding base eyewear, as required by the plain language of Claim 1? The resolution will depend on the evidence presented and the legal standard adopted for this comparison.
- A second key issue will be one of geometric conformance: Does the evidence show that the accused top frame achieves the "close fit" with the base eyewear "without requiring the top frame to be contorted," as recited in the claim? This will likely involve a factual inquiry into the manufacturing tolerances and design of the accused products compared to the specific descriptions of nesting and curvature matching in the patent specification.
Analysis metadata