DCT
1:23-cv-09325
Lexidine LLC v. Safe Fleet Holdings LLC
I. Executive Summary and Procedural Information
- Parties & Counsel:- Plaintiff: Lexidine, LLC (Oklahoma)
- Defendant: Safe Fleet Holdings LLC (Delaware), Safe Fleet Acquisition Corp. (Delaware), and Rear View Safety LLC (New York)
- Plaintiff’s Counsel: Rozier Hardt McDonough PLLC; Stamoulis & Weinblatt LLC
 
- Case Identification: 1:23-cv-09325, E.D.N.Y., 10/23/2024
- Venue Allegations: Venue is alleged to be proper in the Eastern District of New York based on Defendant Rear View Safety LLC having its headquarters in Brooklyn, New York, and all defendants allegedly conducting substantial business and committing acts of infringement within the district.
- Core Dispute: Plaintiff alleges that Defendants’ RVS-brand brake light cameras infringe a patent related to the technology of integrating a camera assembly within a vehicle’s external light housing.
- Technical Context: The technology involves embedding video cameras inside standard vehicle light fixtures to provide a concealed, non-obtrusive camera for aftermarket safety applications on vehicles like RVs and commercial trucks.
- Key Procedural History: The patent-in-suit, U.S. Patent No. 7,609,961, was the subject of an ex parte reexamination, which concluded with the issuance of a Reexamination Certificate on August 22, 2022. The proceeding confirmed the patentability of several original claims and new claims, and confirmed that the original independent claim 1 was patentable as amended. The amendment of Claim 1 during reexamination suggests its scope may have been narrowed to overcome prior art, a factor that will likely be central to the litigation.
Case Timeline
| Date | Event | 
|---|---|
| 2006-04-11 | ’961 Patent Priority Date (Application Filing) | 
| 2009-10-27 | ’961 Patent Issue Date | 
| 2020-02-20 | ’961 Patent Reexamination Requested | 
| 2022-08-22 | ’961 Patent Reexamination Certificate Issued | 
| 2024-10-23 | Complaint Filing Date | 
II. Technology and Patent(s)-in-Suit Analysis
U.S. Patent No. 7,609,961 - "Vehicle Camera," issued October 27, 2009
The Invention Explained
- Problem Addressed: The patent addresses the shortcomings of conventional aftermarket vehicle cameras, which it describes as being "obtrusive in appearance," prone to theft, and often requiring destructive installation such as "drilling a hole in the vehicle." (’961 Patent, col. 1:37-44).
- The Patented Solution: The invention is a camera system designed to be concealed within the housing of a standard vehicle light, such as a marker or brake light. By placing the camera body entirely inside the vehicle lens and using a small opening for the viewing axis, the design aims to be "unobtrusive in appearance" and allow for easy, non-destructive retrofitting onto a vehicle. (’961 Patent, col. 1:52-55, col. 4:18-21; FIG. 2). This integration is intended to "conceal the camera" so it appears to be part of the vehicle's original equipment. (’961 Patent, col. 4:20-21).
- Technical Importance: The described approach provides a method for adding safety cameras to vehicles, particularly large ones like buses and recreational vehicles with significant blind spots, without altering the vehicle's original body style or signaling the presence of expensive, stealable equipment. (’961 Patent, col. 1:21-25).
Key Claims at a Glance
- The complaint asserts infringement of independent claims 1 (as amended), 24, 30, 57, 63, 69, and 71 (Compl. ¶35).
- Amended independent claim 1 requires:- A vehicle lens of an external light with an internal reflector surface, a translucent colored area, and an opening in that area
- The vehicle lens having a "slanted surface in close proximity to the opening"
- A camera body within the vehicle lens with a viewing axis through the opening
- A base attached to the lens, where the viewing axis is at an angle of 15-75 degrees relative to the base's plane
- A camera assembly (including the camera body, a camera lens, and a transparent camera lens cover) where at least a portion of the assembly is outside the opening and is fixed in position relative to the vehicle lens
 
- The complaint reserves the right to assert other claims, including dependent claims (Compl. ¶35).
III. The Accused Instrumentality
Product Identification
- The complaint identifies "brake light cameras" sold under the RVS brand, specifically naming Models RVS-913, RVS-916, RVS-915, RVS-917, RVS-CL-NC-620 TVL, RVS-921-NC, and related bundles as the "Accused Products" (Compl. ¶¶22, 23).
Functionality and Market Context
- The Accused Products are aftermarket camera systems integrated into housings for vehicle third brake lights (Compl. ¶36). These products are designed to replace a vehicle's original third brake light assembly, thereby providing a rear-view video feed to the driver without requiring separate mounting or drilling. The complaint provides an annotated image showing an Accused Product, which includes the brake light's red lens and a small, integrated camera. This annotated image identifies the "Vehicle lens with internal reflector surface and red translucent area" (Compl. p. 7).
IV. Analysis of Infringement Allegations
’961 Patent Infringement Allegations
| Claim Element (from Independent Claim 1, as amended) | Alleged Infringing Functionality | Complaint Citation | Patent Citation | 
|---|---|---|---|
| a vehicle lens of an external light for a vehicle light, the vehicle lens having an internal reflector surface and a translucent area... and having an opening in the translucent area... | The Accused Products provide a vehicle lens for an external third brake light that has an internal reflector surface and a translucent red area with an opening. | ¶36; p. 7 | col. 8:2-5 | 
| the vehicle lens having a slanted surface in close proximity to the opening in the vehicle lens; | The Accused Products are alleged to include a slanted surface near the opening in the vehicle lens. The complaint includes an annotated image labeling a "Slanted surface" on the product. | ¶36; p. 7 | col. 4:55-56 | 
| a camera body within the vehicle lens having a viewing axis through the opening; | The Accused Products have a camera body inside the vehicle lens with a viewing axis passing through the opening. This is illustrated in an annotated image. | ¶36; p. 7 | col. 4:18-20 | 
| a base attached to the vehicle lens, wherein the viewing axis is at an angle between about 15 to 75 degrees with respect to a plane of the base... | The Accused Products include a base attached to the lens, with a viewing axis angled between 15 and 75 degrees relative to the base plane. An annotated image labels the "Base" and the "Viewing axis at an angle...". | ¶36; p. 8 | col. 6:49-51 | 
| a camera assembly that includes at least the camera body, a camera lens, and a transparent camera lens cover... | The Accused Products have a camera assembly including a camera body with optoelectronic components, a camera lens, and a transparent cover. | ¶36; p. 8 | col. 3:4-8 | 
| ...wherein at least a portion of the camera assembly is outside the opening in the vehicle lens; | The complaint alleges that the transparent camera lens cover of the Accused Products constitutes a portion of the camera assembly that is outside the vehicle lens opening. | ¶36; p. 8 | col. 3:23-25 | 
| ...wherein the camera assembly and camera body are fixed in position with respect to the vehicle lens. | The camera assembly and body are alleged to be fixed in position relative to the vehicle lens. | ¶36; p. 8 | col. 2:61-62 | 
- Identified Points of Contention:- Scope Questions: A primary point of dispute may be the construction of "slanted surface in close proximity to the opening." This limitation was added during reexamination, suggesting it was critical for patentability. The parties will likely contest what degree of "slant" and what distance of "proximity" satisfy this limitation.
- Technical Questions: Infringement of the element requiring "at least a portion of the camera assembly is outside the opening" hinges on whether the transparent lens cover is considered part of the "camera assembly" for this purpose. The complaint's annotated image explicitly labels the "Portion of Camera Assembly (lens cover) outside the vehicle lens" (Compl. p. 8). A key question is whether the claim language and specification support this interpretation, or if a defendant could successfully argue the cover is a distinct, non-assembly component.
 
V. Key Claim Terms for Construction
- The Term: "slanted surface in close proximity to the opening" - Context and Importance: This phrase was added to independent claim 1 during reexamination and is not defined with geometric precision in the patent. Its interpretation will be critical for determining the claim's scope and whether the accused products, as physically embodied, infringe.
- Intrinsic Evidence for a Broader Interpretation: The patent does not provide a specific angular or distance range for "slanted" or "close proximity," which may support an interpretation covering any surface that is not parallel or perpendicular to the base and is near the opening.
- Intrinsic Evidence for a Narrower Interpretation: A defendant may argue the term should be limited to the specific embodiment described, such as the "slanted top surface 221" of the "typical 2"x6" vehicle lens" embodiment, which has a specific geometry illustrated in the drawings (’961 Patent, col. 4:55-56; FIG. 4).
 
- The Term: "camera assembly" - Context and Importance: The infringement allegation that "at least a portion of the camera assembly is outside the opening" relies on the transparent lens cover being part of the "assembly." Practitioners may focus on this term because the location of the components relative to the opening is a key structural limitation.
- Intrinsic Evidence for a Broader Interpretation: Amended Claim 1 itself states the assembly "includes at least the camera body, a camera lens, and a transparent camera lens cover," which directly supports the plaintiff's position that the cover is part of the assembly. (Reexam Cert., col. 2:37-39).
- Intrinsic Evidence for a Narrower Interpretation: The specification discusses the "camera assembly 110" and the "transparent camera lens cover 114" as related but distinct items in the description of the figures, which could be used to argue that the "assembly" for the purpose of this limitation refers to the core optoelectronic package housed within the vehicle lens. (’961 Patent, col. 3:4-8).
 
VI. Other Allegations
- Indirect Infringement: The complaint alleges that Defendants induce infringement by providing the Accused Products along with "information brochures, promotional material, and contact information" and by instructing customers on how to use the products in an infringing manner (Compl. ¶¶39-40).
- Willful Infringement: The willfulness allegation is based on Defendants' alleged knowledge of the ’961 patent "at least as of the date when they were notified of the filing of this action" and on an alleged "policy or practice of not reviewing the patents of others," which the complaint characterizes as willful blindness (Compl. ¶¶40-41, 43).
VII. Analyst’s Conclusion: Key Questions for the Case
- A core issue will be one of claim scope defined during reexamination: can the term "slanted surface in close proximity to the opening," which was added to secure the patent’s allowance, be construed to read on the specific physical design of the Defendants’ brake light cameras?
- A second central question will be one of component definition and location: does the accused product's external transparent lens cover qualify as a "portion of the camera assembly" that is "outside the opening" as required by amended Claim 1, or is there a technical or definitional mismatch that would support a non-infringement finding?
- Finally, an overarching issue will be the impact of reexamination: given that the patent’s validity was confirmed by the USPTO, a key question is whether Defendants can present prior art or invalidity arguments sufficiently novel and compelling to overcome the heightened presumption of validity that attaches to a reexamined patent.