TOPCon Solar Patents Invalidated: U.S. PTO Rules in Canadian Solar's Favor

The U.S. Patent and Trademark Office invalidated all claims of two TOPCon solar cell patents asserted by Trina Solar against Canadian Solar subsidiaries. Trina had filed patent infringement complaints in U.S. district court against three Canadian Solar units and initiated proceedings in China seeking significant monetary damages for alleged infringement of two other TOPCon technology patents. Canadian Solar faces multiple patent challenges from various solar technology companies across different jurisdictions.