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Canadian Solar Triumphs in Patent Battle; Shares Surge

1/16/2026

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Summary

Story summary

Canadian Solar Inc. defeated Maxeon Solar Technologies, Inc. in a U.S. patent dispute after the Patent Trial and Appeal Board invalidated all of Maxeon's claims.
Following the ruling, Canadian Solar shares rose 5.2% while Maxeon shares fell 2.3%.
In 2024, Maxeon filed a lawsuit against Canadian Solar over TOPCon technology.
A Maxeon spokesperson said one patent claim was upheld and Maxeon is considering an appeal.

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Story summary

Canadian Solar Inc. defeated Maxeon Solar Technologies, Inc. in a U.S. patent dispute after the Patent Trial and Appeal Board invalidated all of Maxeon's claims.
Following the ruling, Canadian Solar shares rose 5.2% while Maxeon shares fell 2.3%.
In 2024, Maxeon filed a lawsuit against Canadian Solar over TOPCon technology.
A Maxeon spokesperson said one patent claim was upheld and Maxeon is considering an appeal.