Canadian Solar wins dismissal of Maxeon US patent lawsuit
CSIQ•Maxeon patent dispute dismissed
Canadian Solar won the remaining U.S. patent dispute brought by Maxeon over TOPCon solar cell technology.
Maxeon’s federal district court infringement suit was dismissed with prejudice.
PTAB and Federal Circuit rulings
The Federal Circuit vacated the PTAB ruling portion tied to Maxeon’s remaining claim.
PTAB final written decisions in January 2026 found all asserted Maxeon patent claims invalid.
