EPC, Innoscience both claim victory in GaN patent fight

EPC, Innoscience both claim victory in GaN patent fight

Business news |
By Peter Clarke

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Power semiconductor vendors Efficient Power Conversion Corp. and Innoscience have both claimed victory following an interim determination from the US International Trade Commission on disputes over GaN technology.

EPC said that the ITC has found key EPC patents to be valid and that one patent has been infringed by Innoscience.

Innoscience (Zhuhai) Technology Co. Ltd., a leading manufacturer of GaN-on-Si, said that according to the initial determination the ITC found no violation of the 508 patent, which is directed towards a method of forming an enhancement mode GaN transistor. While it was ruled that Innoscience has infringed the ‘294 patent the company said the point is moot because it believes the patent is invalid.

The ‘294 patent is being challenged before the USPTO with a decision expected in March 2025, Innoscience said.

EPC pointed out that China National Intellectual Property Administration (CNIPA) has validated EPC’s counterpart patents in China. If its US patent, and the infringement of it stands, it could lead to a ban on importation of Innoscience’s infringing products into the US.

“The ITC’s finding that Innoscience uses our patented technology without authorization puts EPC in an enviable position, as U.S. and Chinese regulatory bodies have upheld the validity of our patents,” said Alex Lidow, CEO and co-founder of EPC, in a statement.

The Commission’s final determination is expected to be issued on

November 5, 2024.

Innoscience is also in patent disputes with Infineon in the US and in Europe (see Innoscience asks USPTO to rule Infineon GaN patent invalid).

Related links and articles:

News articles:

China’s Innoscience denies EPC claims of GaN patent infringement

EPC’s GaN fight with Innoscience looks to China trade war

China’s Innoscience responds to Infineon’s European GaN lawsuits

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