Infineon-Innoscience patent battle continues
The patent battle between Infineon and Innoscience continues with a new ruling on a case concerning the unauthorised use by Innosciesce of GaN technologies patented by Infineon.
Infineon has announced that the District Court Munich, Germany has ruled in its favour in two further patent infringement cases – specifically one based on a patent one based on a utility model – concerning GaN technology between Infineon and the Chinese company Innoscience.
With these rulings, the court prohibits Innoscience from manufacturing, selling, and marketing additional patent-infringing products in Germany. Furthermore, the court has ordered Innoscience to pay damages to Infineon.
This follows the recent anouncement from Innoscience that China’s Supreme People’s Court has upheld a sales injunction against certain GaN products manufactured by Infineon Technologies. That ruling follows a May 27th 2026 judgment by the Intermediate People’s Court of Suzhou, which found that specified Infineon GaN products infringed an Innoscience patent covering GaN device technology.
Infineon says the case in Germany now marks Innoscience’s third and fourth legal defeat in a series of court cases, each of which found that Innoscience’s products infringe Infineon’s patents.
Courts and authorities in both Germany and the United States have repeatedly concluded that Innoscience’s products infringe Infineon’s intellectual property rights.
Prior rulings include the decision against Innoscience from August 1, 2025, in an initial German proceeding. Furthermore, on May 7, the Full Commission of the U.S. International Trade Commission (ITC) found that Innoscience had infringed an Infineon patent in the field of GaN technology. Additional proceedings regarding the infringement of other Infineon patents are pending in the U.S. and Germany.
“Today’s ruling demonstrates the value of our GaN portfolio and underscores our commitment to vigorously defending our intellectual property and promoting fair competition,” said Johannes Schoiswohl, SVP and head of Infineon’s GaN Systems Business Line.
