Source: Official Team Post via X
Patent Showdown: Former FIA Supplier Takes Rival to Court Pre-United States GP
As Formula 1 heads to Texas for the United States Grand Prix, a patent dispute has emerged between former FIA supplier Sentronics and its successor Allengra. The legal wrangle centers on allegations of patent infringement concerning ultrasonic fuel flow meters.
A bit of legal drama has unfolded in the backdrop of the United States Grand Prix, with a patent dispute brewing between two key players in Formula 1's technical supply chain. British firm Sentronics Holdings Ltd., which previously supplied the FIA with ultrasonic fuel flow meters, has taken its German successor, Allengra GmbH, to court in Texas. The bone of contention? Allegations that Allengra's new meters infringe on Sentronics' patented technology.
Sentronics had been the exclusive supplier for these meters from 2018 until 2025. However, the FIA decided to shake things up with a new tender process in 2023, ultimately awarding the contract to Allengra in late 2024. This change meant that every team on the grid now relies on Allengra's devices for the current season, a situation Sentronics isn't taking lightly.
The lawsuit, lodged in the U.S. District Court for the Western District of Texas, accuses Allengra of infringing on Sentronics' '609 Patent. This patent, issued in July 2022, covers a method of using phase-modulated ultrasonic signals in fuel flow meters. Sentronics claims that Allengra's devices unlawfully incorporate this technology, a conclusion they reached through their own testing in 2024.
Sentronics' complaint details how they believe Allengra's meters, which are used not just in F1 but also marketed to other motorsport and industrial sectors, breach their patent rights. They've alleged that Allengra was well aware of these patent claims, having been formally notified as early as August 2025. Sentronics is now seeking damages, potentially up to three times the actual losses, due to what they describe as willful infringement.
For now, the lawsuit won't disrupt the proceedings at the Circuit of The Americas. Sentronics isn't seeking an emergency temporary restraining order, so the race will go ahead with Allengra's meters in place. However, should the court process uncover more damning evidence, Allengra might have to open up its technical playbook, revealing proprietary data and designs.
The FIA, for its part, has acknowledged being informed of the patent dispute. Any significant ruling or settlement could reshape the future landscape of F1's technical partnerships, potentially impacting how contracts are awarded and executed. As the legal gears turn, Sentronics is pressing for financial compensation and a permanent injunction to prevent further use of its patented technology.
In a sport where technical prowess often determines the outcome, this legal battle underscores the high stakes involved in supplying F1 with cutting-edge technology. Whether Sentronics' claims hold up in court remains to be seen, but the outcome could have far-reaching implications for the companies involved and the broader motorsport industry.