Honeywell Aerospace US LLC filed Honeywell Aerospace US LLC v. Lucid Group, Inc. and Lucid Group USA, Inc., No. 2:26-cv-00841-JRG, in the Eastern District of Texas on September 18, 2026. The case is assigned to Judge Rodney Gilstrap. Honeywell demands a jury and alleges willful infringement.

Patents and exemplary asserted claims

The complaint asserts seven patents and identifies exemplary claims in the counts:

  • U.S. Patent 7,088,264 - Flight safety system monitoring combinations of state values - exemplary claim 1 (complaint also discusses claim 24).
  • U.S. Patent 7,286,062 - Perspective view conformal traffic targets display - exemplary claim 1.
  • U.S. Patent 7,840,352 - Method and system for autonomous vehicle navigation - exemplary claim 1.
  • U.S. Patent 8,314,816 - System and method for displaying information on a display element - exemplary claim 14.
  • U.S. Patent 8,364,334 - System and method for navigating an autonomous vehicle using laser detection and ranging - exemplary claim 13.
  • U.S. Patent 9,355,567 - System and method for highlighting an area encompassing an aircraft that is free of hazards - exemplary claim 1.
  • U.S. Patent 10,133,856 - Method and system for managing software license for vehicle - exemplary claim 1.

Accused products

The complaint accuses Lucid Air sedans and Lucid Gravity SUVs operating one or more versions of the Lucid DreamDrive platform, including DreamDrive, DreamDrive Premium, DreamDrive Pro, DreamDrive 2 Premium, and DreamDrive 2 Pro. Honeywell points to the DreamDrive sensor suites (cameras, radar, ultrasonics, and, on DreamDrive Pro and DreamDrive 2 Pro, forward-facing LiDAR), ADAS features, and related displays and software.

What the patents cover

Honeywell's narrative is an aerospace-to-EV spin-off story: aircraft safety, traffic-display, and autonomy inventions being practiced in Lucid's road vehicles. The lead claim summaries below restate issued claim language; they are not findings that Lucid practices any claim.

U.S. Patent 7,088,264

U.S. Patent 7,088,264 covers determining unsafe vehicle conditions by watching combinations of state values, not just single sensors in isolation.

Claim 1 covers a method that monitors values of vehicle states, compares combinations of those values to known unsafe combinations, and identifies combinations that match the unsafe set.

U.S. Patent 7,840,352

U.S. Patent 7,840,352 covers autonomous navigation that fuses GPS, inertial, and image measurements to estimate vehicle position over time.

Claim 1 covers a navigation method that provides GPS, inertial, and image sensors on an autonomous vehicle, obtains measurements from each, integrates those measurements together, and estimates the vehicle's position over time from that integration.

U.S. Patent 10,133,856

U.S. Patent 10,133,856 covers managing a vehicle software-module license by tying access denial at expiration to the vehicle's observed operating state.

Claim 1 covers a method that receives license-term data including an expiration time limit, observes a vehicle condition with a sensor, determines an operating state from that condition, and decides whether to deny access to the software module at expiration based on that operating state.

The remaining asserted patents

U.S. Patent 7,286,062 covers a traffic-target display that sizes icons by sensed range within bounded maximum and minimum sizes. Exemplary asserted claim: 1.

U.S. Patent 8,314,816 covers a vehicle display system that renders range data and a time-correlated image of a detected object on a synthetic terrain view, then updates the image as a predicted view of the object at a later sampling time. Exemplary asserted claim: 14.

U.S. Patent 8,364,334 covers autonomous-vehicle navigation that processes range scans and navigation data through ground-plane, range-based, and intensity-based classification modules; fusing their outputs into range bin classifications is added by dependent claim 14. Exemplary asserted claim: 13.

U.S. Patent 9,355,567 covers a hazard display that draws a contracting object-free swath around the vehicle and shows an avoidance-maneuver icon. Exemplary asserted claim: 1.

What the lawsuit is about

Honeywell alleges Lucid has been on notice of these patents for years through correspondence, claim charts, and follow-up letters (including 2023-2024 exchanges) yet continued to sell Air and Gravity vehicles with DreamDrive features. The prayer for relief asks for a willfulness judgment, damages under 35 U.S.C. 284, an exceptional-case finding and attorneys' fees under 35 U.S.C. 285, and preliminary and permanent injunctions against further infringement of any patent-in-suit.

Two patents have expired

Google Patents lists U.S. Patent 7,088,264 as expired on May 27, 2023 and U.S. Patent 7,286,062 as expired on January 5, 2026. If those dates hold, the two counts can reach only damages for conduct before expiration, within the six-year limit in 35 U.S.C. 286, and the injunction request cannot apply to them. The complaint says Honeywell served its '264 claim chart on April 20, 2023 (paragraph 146), about five weeks before that listed expiration, and that Lucid released the Gravity in 2024 (paragraph 98), after it. The complaint does not mention either expiration.

Why it matters

The suit puts aerospace-origin ADAS and autonomy patents against a volume EV maker's driver-assistance stack. The claim mix spans unsafe-state combination monitoring, range-scaled traffic icons, GPS/inertial/image fusion, sensor-fusion displays, laser classification, hazard swaths, and license-expiration tied to operating state - a broad map for claim construction and product discovery.

What to watch next

Watch Lucid's answer and any early Rule 12 or venue challenges, claim-construction proposals on the seven patents, and whether Honeywell expands or narrows the exemplary claim set in infringement contentions.