Led Apogee v. Texas Instruments: LED Driver Patent Case Dismissed Without Prejudice
Led Apogee LLC filed suit against Texas Instruments in the Eastern District of Texas asserting US6982527B2, covering a method for driving light emitting diodes. The parties jointly dismissed the action without prejudice under FRCP 41(a)(1)(A)(ii) after just 84 days, with each side bearing its own costs.
An 84-day LED patent clash in E.D. Tex. ends without adjudication
On December 3, 2024, Led Apogee LLC filed an infringement action against Texas Instruments, Inc. in the Eastern District of Texas (Case No. 2:24-cv-00996), asserting US6982527B2, a patent covering a method for driving light emitting diodes. The case was assigned to Judge Rodney Gilstrap, one of the most experienced patent jurists in the country, in a district that consistently ranks among the highest-volume patent litigation venues in the United States.
The case concluded on February 25, 2025 — just 84 days after filing — when the parties filed a joint notice of dismissal without prejudice under FRCP 41(a)(1)(A)(ii). The court accepted and acknowledged the dismissal, directed the clerk to close the case, and ordered each party to bear its own costs, expenses, and attorneys’ fees. A dismissal without prejudice means Led Apogee retains the right to reassert the same claims against Texas Instruments in a future action.
The resolution timeline is notably short, suggesting the parties may have reached an early-stage agreement — potentially a licensing arrangement or covenant not to sue — before any substantive motion practice. The public record does not disclose the underlying commercial terms, if any. The mutual cost-bearing provision is consistent with a negotiated resolution rather than a unilateral withdrawal, though the precise driver of the dismissal remains unknown from publicly available documents.
Filing to Case Dismissed in 84 days
84 days — well below median time-to-termination for E.D. Tex. patent cases
Dismissed without prejudice: what the joint ruling means for both parties
FRCP 41(a)(1)(A)(ii): joint stipulated dismissal explained
Rule 41(a)(1)(A)(ii) allows parties to dismiss an action without a court order by filing a signed stipulation. Unlike a unilateral plaintiff dismissal under Rule 41(a)(1)(A)(i), this route requires defendant’s signature — signalling mutual agreement. The court’s role is ministerial: it accepts and acknowledges the dismissal but does not adjudicate the merits. No claim construction, validity determination, or infringement ruling was issued.
No merits adjudicationWithout prejudice: Led Apogee preserves the right to refile
A dismissal without prejudice does not extinguish the underlying patent claims. Led Apogee retains the ability to reassert US6982527B2 against Texas Instruments in a future action, subject to applicable statutes of limitations and any agreed covenants. This is commercially significant: it leaves open the possibility of renewed enforcement if licensing negotiations break down or if the parties failed to reach a final agreement. The public record is silent on whether any side payment or licence was exchanged.
Refile right preservedTexas Instruments avoids a merits ruling — but exposure persists
Texas Instruments secured a cost-neutral exit with no adverse finding on infringement or validity of US6982527B2. However, because the dismissal is without prejudice, the patent remains a live threat. Texas Instruments cannot rely on claim or issue preclusion to block a future suit on the same patent. If no licence or covenant was obtained, its LED driver product lines remain potentially exposed to reassertion.
No preclusion obtainedUS6982527B2 remains an active enforcement risk for the LED driver sector
Because the case resolved without any validity or infringement ruling, US6982527B2 emerges from this litigation with its enforceability fully intact. Other LED driver manufacturers and semiconductor companies supplying LED driving ICs should note that this patent has now been asserted in E.D. Tex. and survived to a negotiated resolution. That litigation history may embolden further enforcement activity against similarly situated defendants in the sector.
Patent enforceability intactFull party and counsel information
| Role | Name | Type | Detail |
|---|---|---|---|
| Plaintiff | Led Apogee, LLC | Company | LED lighting IP licensor — holder of US6982527B2 (LED driving method patent)Search in Eureka ↗ |
| Defendant | Texas Instruments, Corp. | Company | Texas Instruments, Inc. — global semiconductor manufacturer and LED driver IC supplierSearch in Eureka ↗ |
| Plaintiff counsel | Isaac Phillip Rabicoff | Attorney | Counsel for Led Apogee, LLCSearch in Eureka ↗ |
| Plaintiff law firm | Rabicoff Law LLC | Law Firm | Representing Led Apogee, LLCSearch in Eureka ↗ |
| Defendant counsel | Amanda Aline Abraham | Attorney | Counsel for Texas Instruments, Corp.Search in Eureka ↗ |
| Defendant law firm | The Roth Law Firm PC | Law Firm | Representing Texas Instruments, Corp.Search in Eureka ↗ |
| Presiding judge | Judge Rodney Gilstrap | Judge | Texas Eastern District CourtSearch in Eureka ↗ |
Official order — verbatim text
The court’s order reproduces the dismissal as ‘without prejudice’ despite the filing being captioned as a ‘Joint Dismissal with Prejudice’ — the operative text controls, and the dismissal is without prejudice. No claim construction, infringement, or validity findings were made. The mutual cost-bearing provision is consistent with a negotiated exit. The absence of any merits ruling means US6982527B2 retains full presumptive validity and can be reasserted.
US6982527B2 — Method for Driving Light Emitting Diodes
US6982527B2 covers a method for driving light emitting diodes, filed under application number US10/844956. The patent sits within the LED driver control technology domain — a foundational area governing how electrical current is regulated to power LED arrays efficiently and reliably. Patents in this space typically cover switching circuits, current control algorithms, or pulse-width modulation techniques used in LED power management integrated circuits.
Texas Instruments is one of the world’s largest suppliers of LED driver ICs, with a broad portfolio serving automotive lighting, display backlighting, and general illumination markets. Assertion of a method patent covering LED driving techniques against TI suggests the patent’s claims may read on widely used driver architectures. For semiconductor companies supplying LED driver solutions, this patent represents a meaningful landscape risk — particularly given its survival through litigation without any validity challenge on the public record.
Should you run an FTO against US6982527B2?
Any company designing, manufacturing, or supplying LED driver integrated circuits, LED lighting modules, or systems incorporating LED current control methods should treat US6982527B2 as a priority FTO target. The patent has been asserted against Texas Instruments — one of the most well-resourced semiconductor defendants — and resolved without a validity ruling. That outcome, combined with the without-prejudice dismissal, suggests the patent’s claims are considered viable by both sides. Product teams working on LED backlighting, automotive LEDs, or smart lighting controllers face the highest exposure.
PatSnap Eureka’s FTO Search Agent allows IP and R&D teams to map claim coverage of US6982527B2 against their specific LED driving architectures in minutes. Eureka identifies overlapping claim language, surfaces prior art candidates for potential IPR, and flags related family members or continuation patents that may extend the enforcement perimeter. Running a structured FTO now — before any demand letter arrives — is significantly more cost-effective than defending in E.D. Tex. under Judge Gilstrap’s compressed schedule.
Run a freedom-to-operate analysis on US6982527B2 to assess your product’s exposure
Run FTO in Eureka →Similar LED driver and semiconductor patent cases in E.D. Tex.
Explore patent infringement actions asserting LED driver and semiconductor control method patents in the Eastern District of Texas, including cases before Judge Gilstrap.
What this case signals for the LED driver and semiconductor IP landscape
An 84-day dismissal in E.D. Tex. without prejudice typically signals early leverage-driven resolution — and an unresolved patent threat.
Speed of resolution suggests pre-litigation leverage was the primary objective
Cases that close in under 90 days in E.D. Tex. — before any substantive motion practice — are consistent with a licensing or covenant strategy rather than full adjudication. The joint dismissal structure and mutual cost-bearing provision reinforce this reading. Companies in the LED driver supply chain should treat this as a signal that US6982527B2 is being actively monetised.
Without-prejudice dismissal leaves the patent as a repeatable enforcement tool
Unlike a with-prejudice dismissal or an IPR final written decision, this outcome does not narrow the patent’s reach. Led Apogee retains full enforcement optionality. Competitors and component suppliers whose products practice LED current or voltage driving methods should conduct FTO analysis against US6982527B2 before the patent is reasserted.
Led v Texas — key questions answered
The case was dismissed without prejudice on February 25, 2025, under FRCP 41(a)(1)(A)(ii), via a joint stipulation. No merits ruling on infringement or validity was issued. Each party was ordered to bear its own costs and attorneys’ fees. The dismissal preserves Led Apogee’s right to refile the same claims in a future action.
Led Apogee asserted US6982527B2, a patent covering a method for driving light emitting diodes (application number US10/844956). The patent relates to LED driver control technology and was asserted in the context of Texas Instruments’ LED driver products and methods.
A dismissal without prejudice means the patent owner retains the full right to reassert US6982527B2 in a future lawsuit against Texas Instruments or other defendants. No preclusion doctrine bars refiling. The patent’s validity was never adjudicated, so it retains its presumption of validity. Other LED driver manufacturers remain exposed to assertion.
The public record does not disclose the reason, but an 84-day resolution in E.D. Tex. before any substantive motion practice is consistent with an early licensing agreement, covenant not to sue, or other commercial arrangement. The joint dismissal structure requiring both parties’ signatures suggests a mutually agreed resolution rather than a unilateral withdrawal by the plaintiff.
Judge Gilstrap in the Eastern District of Texas presides over more patent cases than virtually any other federal judge in the United States. His docket operates on aggressive scheduling orders with compressed claim construction and discovery timelines. Filing in E.D. Tex. before Gilstrap is a well-recognised plaintiff strategy to create settlement pressure through procedural velocity and venue reputation.
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