Innoscience (Suzhou) Technology Holding Company, Ltd., commonly known as Innoscience, is a publicly listed Chinese semiconductor company headquartered in Suzhou, Jiangsu. Founded on December 17, 2015, the company trades on the Hong Kong Stock Exchange under the ticker SEHK: 2577. Innoscience employs approximately 1,359 to 1,600 global employees and had a market capitalization of $8.36 billion as of June 5, 2026.
Innoscience operates as the world's largest integrated device manufacturer (IDM) exclusively focused on Gallium nitride (GaN) technology. The company produces 8-inch GaN-on-silicon wafers, discrete GaN chips, integrated circuits, and modules. These products are widely used across various sectors including consumer electronics (e.g., fast chargers, laptops), 5G base stations, AI data centers, renewable energy, industrial power systems, and automotive electronics. By 2024, Innoscience held a 29.9% share of the global GaN power device market.
While the provided case data tracks Innoscience with one plaintiff case and zero defendant cases at the Patent Trial and Appeal Board (PTAB), indicating they have initiated a challenge, the company is actively involved in complex, multi-jurisdictional patent litigation. Innoscience is an operating company that both defends against patent infringement allegations and asserts its own intellectual property against competitors.
A notable example of this litigation posture is the ongoing "GaN patent war" with Infineon Technologies. The tracked PTAB case, Innoscience America, Inc. et al. v. Infineon Technologies North America Corp, filed on February 4, 2025, is part of this broader dispute where Innoscience has challenged Infineon's patents. Innoscience has achieved victories, such as a PTAB ruling in March 2025 that invalidated all challenged claims of a patent asserted by Efficient Power Conversion Corporation (EPC). Conversely, Innoscience has also faced challenges, including a U.S. International Trade Commission (ITC) import ban related to an Infineon GaN patent in May 2026. In a significant development for Innoscience, China's Supreme People's Court recently upheld a sales injunction against Infineon's GaN products within mainland China, based on Infineon's infringement of Innoscience's patents.