Infineon expands its GaN patent case against Innoscience – updated
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Infineon Technologies in Germany has expanded its patent lawsuit in the US against Innoscience of China following a challenge to its original case.
Last month Infineon obtained an injunction in Germany to prevent Innoscience showing its GaN parts at the PCIM tradeshow, citing patent 9.899,481, which covers a fundamental switch design. Innoscience has since challenged that injunction, saying it only applies to the tradeshow, and the validity of the original patent.
Infineon yesterday added three other patents to its case in the US. These are 8,686,562 for a Refractory metal nitride capped electrical contact and method for fabricating, 9,070,755 for a transistor having elevated drain finger termination and 8,264,003 for a merged cascode transistor.
Innoscience Technology has responded by saying it aims to invalidate all the disputed patents and “firmly denounces the baseless accusations of patent infringement by Infineon Technologies AG. These claims, first made in the Northern District of California (NDCA), followed by filings in Munich, Germany, and most recently at the International Trade Commission (ITC) on July 26, 2024, are strategic attempts to unfairly undermine Innoscience’s market standing. Innoscience takes these legal actions seriously, having conducted extensive research, analysis, and review. Innoscience remains confident that Infineon’s allegations lack merit and that the asserted patents will ultimately be deemed invalid. Therefore, these lawsuits will not affect Innoscience’s current product sales and normal operations.”
“Innoscience has taken decisive measures to counter Infineon’s baseless accusations by engaging a legal team with extensive patent litigation experience. We will file invalidity petitions against all asserted patents. In June, Innoscience already filed an Inter Partes Review (IPR) with the U.S. Patent and Trademark Office, challenging the patent No. US 9,899,481 asserted by Infineon. We are continuing to implement our other robust defences and are confident that we can and will fully invalidate all of Infineon’s asserted patents,” it saidf.
This is a very similar strategy to that adopted with EPC in a separate case.
A judge in the US is reviewing the validity of another GaN patent, ‘294, in a separate GaN patent case that EPC brought against Innoscience. A ruling on this is due in March 2025 The main results of the EPC lawsuit against Innoscience last week saw neither side gain an advantage, with the final results resting on the decision around the ‘294 patent.
www.infineon.com; www.innoscience.com
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