March 24, 2026
A Delaware federal judge on Tuesday said German research institute Fraunhofer-Gesellschaft's delay in bringing a patent suit against SiriusXM was fatal to its claims, after the Federal Circuit previously said the judge must look closer at whether that delay was relied upon by Sirius.
November 04, 2025
An attorney for applied research venture Fraunhofer-Gesellschaft told a Delaware federal judge Tuesday that SiriusXM has failed to show it was lulled by the German patent-holder into continuing alleged infringements of satellite radio technology when the original licensee retreated into bankruptcy.
September 16, 2025
A Delaware federal judge has ordered a bench trial on the issue of whether Sirius XM relied on a German research foundation's five-year delay in bringing patent claims related to satellite radio technology in making business decisions around that tech.
July 11, 2023
Following "eventful discovery," a Delaware federal court has decided a German research foundation that developed improvements to satellite radio broadcasting in the mid-1990s waited too long to bring a suit and therefore does not actually have a patent case against the satellite radio giant Sirius XM.
January 20, 2022
Federal Circuit judges will consider next week whether a medical device startup's founder can attack a patent he helped develop after a U.S. Supreme Court decision in the dispute last year narrowed rules for blocking inventors from challenging their own patents.