First Solar sues JA Solar, AMPS over US TOPCon patent infringement claims

• First Solar filed a patent infringement lawsuit in U.S. District Court in Delaware against JA Solar, alleging infringement of U.S. Patent No. 9,130,074.
• The patent covers methods for manufacturing TOPCon crystalline silicon photovoltaic solar cells.
• The complaint also names American Panel Solutions, alleging unauthorized use of the patented technology in the U.S. market.
• First Solar said it acquired the TOPCon patent portfolio through its 2013 purchase of TetraSun.

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. First Solar Inc. published the original content used to generate this news brief via Business Wire (Ref. ID: 20261001235903) on October 01, 2026, and is solely responsible for the information contained therein.