League: F1 Sport: Motorsports Country: Global Category: Scores & Results

Sentronics sues Allengra over F1 fuel flow meter patent ahead of US GP

2 sources • 1 min read • Latest: Oct 20, 2026, 11:35 AM

Last updated Oct 20, 2026

Sentronics sues Allengra over F1 fuel flow meter patent ahead of US GP

Summary

Sentronics Holdings Ltd filed a lawsuit against Allengra GmbH in the US District Court for the Western District of Texas on October 16. The former fuel flow meter supplier claims that the sensors used by all F1 cars infringe its US patent 11,391,609 regarding fuel flow measurement. Sentronics, which supplied the FIA from 2018 to 2025, alleges that Allengra was aware of the infringement when it won the FIA contract for 2026 to 2030. The court has been asked to issue a summons, but Sentronics has not sought an emergency ban, which means the US Grand Prix will not be affected by the lawsuit.

Source Links

Yahoo Sports Motorsport.com

By the Numbers

•Sentronics alleges patent infringement by Allengra for fuel flow meters.
•The lawsuit was filed just days before the US Grand Prix.
•Sentronics claims its testing confirmed infringement of its patent.
•No immediate impact on the upcoming US GP is anticipated.
•Sentronics seeks a permanent ban on Allengra's meters in the US.

Latest Updates

11:35 AMYahoo Sports — F1’s former fuel flow meter supplier sues its replacement ahead of US GP
11:35 AMMotorsport.com — F1’s former fuel flow meter supplier sues its replacement ahead of US GP

What they're saying

"
Formula 1’s former fuel flow meter supplier, Sentronics Holdings Ltd, has taken its replacement to court in Texas. The company claims that the sensors now used by every car in the championship infringe its patent. The British company filed the case against German manufacturer Allengra GmbH in the US District Court for the Western District of Texas on 16 October. This comes just days before ...Keep reading
— Motorsport.com