Sekisui Chemical says German court upholds EP’888 PVB interlayer patent in Kuraray challenge

• Sekisui Chemical reported court and tribunal decisions upholding key patents covering PVB interlayer technology in Germany and South Korea.
• Germany’s Federal Patent Court dismissed Kuraray Europe’s nullity action against the German part of European patent EP 3 357 888 on June 23, 2026.
• The ruling follows an earlier decision upholding EP 2 017 237 B2, which underpins an enforced German injunction against Kuraray’s Trosifol wedge acoustic products.
• Sekisui Chemical is weighing damages claims against Kuraray Europe based on EP 3 357 888.
• South Korea’s IP Trial and Appeal Board upheld Korean patents 1935216 and 1935222 on June 22, 2026; related Seoul injunction proceedings remain ongoing.

Disclaimer: This news brief was created by Public Technologies (PUBT) using generative artificial intelligence. While PUBT strives to provide accurate and timely information, this AI-generated content is for informational purposes only and should not be interpreted as financial, investment, or legal advice. Sekisui Chemical Co. Ltd. published the original content used to generate this news brief on July 13, 2026, and is solely responsible for the information contained therein.