U.S. International Trade Commission rules in favor of Infineon in one patent infringement case against Innoscience

Rhea-AI Summary

Infineon (OTC:IFNNF) said the U.S. International Trade Commission issued a preliminary finding that one Infineon GaN patent was violated by Innoscience and confirmed legal validity of two asserted patents. A final ITC determination is expected on April 2, 2026, which could lead to a U.S. import ban on the allegedly infringing Innoscience products.

Infineon also noted parallel German actions, including a Munich court infringement finding in August 2025 and a German patent office confirmation of a related patent.

Positive

• ITC preliminary finding: one patent violated (possible import ban)
• ITC confirmed legal validity of two asserted patents
• Munich court found infringement in August 2025
• Patent portfolio ~450 GaN patent families

Negative

• Final ITC determination pending on April 2, 2026
• Parallel litigation and enforcement actions remain ongoing

News Market Reaction – IFNNY

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In the Dec 3 session, IFNNY gained 3.73%, reflecting a moderate positive market reaction.

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• The Commission's final determination could lead to an import ban of Innoscience's allegedly infringing products into the U.S.
• The ruling is another positive decision which underscores the value of Infineon's industry leading patent portfolio
• GaN plays a pivotal role in enabling high-performance and energy-efficient power systems

MUNICH, Dec. 3, 2025 /PRNewswire/ -- The U.S. International Trade Commission (ITC) found the violation of one patent owned by Infineon Technologies AG (FSE: IFX) (OTCQX: IFNNY) concerning gallium nitride (GaN) technology by Innoscience.^[1] In addition, in this preliminary decision, the ITC confirmed that both patents asserted by Infineon in the proceedings before the ITC are legally valid.^[2] The case centers on the unauthorized use of Infineon's patented GaN technologies by Innoscience. The Commission's final determination is expected to be issued on April 2, 2026. If this preliminary decision will be confirmed, it will lead to an import ban of Innoscience's allegedly infringing products into the United States of America.

"This ruling is another testament to the strength of Infineon's intellectual property and confirms our commitment to vigorously defend our patent portfolio against infringements and ensuring fair competition in the market," says Dr. Johannes Schoiswohl, Senior Vice President and Head of Infineon's GaN Systems Business Line. "We remain dedicated to fostering innovation and advancing semiconductor technology to address the world's most pressing challenges, from decarbonization to digital transformation." 

The ruling is yet another positive decision which underscores the value of Infineon's contributions to GaN technology. In a parallel dispute in Germany, the German patent office recently confirmed the validity of a patent of Infineon and upheld it in slightly amended form. Infineon is asserting infringement of this patent in the Munich District Court.^[3] Already in August 2025, the Munich District Court I (Landgericht München I) found infringement of another Infineon patent by Innoscience.^[4]

Infineon is a leading integrated device manufacturer (IDM) in the GaN market with the industry's broadest IP portfolio, comprising approximately 450 GaN patent families. With higher power density, faster switching speeds, and lower power losses, GaN semiconductors enable smaller designs, reducing energy consumption and heat generation. As a leader in power systems, Infineon is mastering all three relevant materials: silicon (Si), silicon carbide (SiC) and gallium nitride.  

Press Contact:

Andre Tauber, andre.tauber@infineon.com,  Tel. +49 89 343 6705

^[1] US 9,899,481
^[2] US 9,899,481 and US 9,070,755
^[3] DE102017100947
^[4] DE102014113465

SOURCE Infineon Technologies AG

FAQ

What did Infineon (IFNNF) announce about the ITC ruling on December 3, 2025?

Infineon reported a preliminary ITC finding that one GaN patent was violated, with two patents confirmed valid. According to Infineon, the ITC's final determination is expected on April 2, 2026 and could result in a U.S. import ban of Innoscience products.

How could the ITC decision affect Innoscience products entering the U.S. under IFNNF's announcement?

If the preliminary finding is confirmed, it could block imports of Innoscience's allegedly infringing products into the U.S. According to Infineon, a confirmed ruling would trigger an import ban affecting those specific GaN-based products.

What related legal outcomes did Infineon (IFNNF) cite alongside the ITC action?

Infineon cited a German patent office confirmation and a Munich court finding of infringement in August 2025. According to Infineon, these parallel rulings reinforce the company's asserted GaN patent rights in Europe and the U.S.

Why is Infineon's GaN patent portfolio material for investors in IFNNF?

Infineon claims the industry’s broadest GaN IP portfolio with about 450 patent families, supporting market position and licensing leverage. According to Infineon, the portfolio underpins its GaN leadership and potential enforcement outcomes.

What is the timeline investors should watch after Infineon's ITC announcement for IFNNF?

Investors should watch the ITC final determination scheduled for April 2, 2026, which could confirm remedies like an import ban. According to Infineon, that date will determine whether the preliminary finding is upheld and enforced.