US Patent & Trademark Office Rejects Attempts by Canadian Solar, JinkoSolar, and Mundra Solar to Challenge Validity of First Solar TOPCon Patents

CleanTechnica
By Press ReleaseJan 21, 2026, 12:37 am372 ptsTop
Inter Partes Review applications denied as First Solar lawsuits continue to progress. First Solar, Inc. (Nasdaq: FSLR) (“First Solar”) today announced that the Director of the United States Patent and Trademark Office (USPTO) denied three separate Inter Partes Review (IPR) applications seeking to…

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