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US Patent Board Declines Applications Against First Solar’s TOPCon Patents

The applications were filed by JinkoSolar, Mundra Solar, and Canadian Solar

January 21, 2026

/ Parth Shukla
/ Manufacturing, Markets & Policy, Solar, Technology
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The U.S. Patent and Trademark Office (USPTO) director has denied three separate inter partes review applications filed by JinkoSolar, Mundra Solar, and Canadian Solar in 2025, seeking to invalidate First Solar’s technology patents, covering methods of manufacturing TOPCon crystalline silicon solar cells.

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Parth Shukla

More articles from Parth Shukla.
Canadian SolarFirst SolarinfringementJinkoSolarMundra SolarPatentsSolarTOPCpnU.S.UPTO
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