First Solar Patent Applications Denied
First Solar (FSLR) announced that the Director of the United States Patent and Trademark Office, or USPTO, denied three separate inter partes review, or IPR, applications seeking to invalidate the company's Tunnel Oxide Passivated Contact patents through a review process. The IPRs were filed by JinkoSolar (JKS), Mundra Solar, and Canadian Solar (CSIQ) in 2025, and were declined on November 20, December 11, and December 18, respectively. "First Solar believes the USPTO properly exercised its discretion in each of the cases brought by Jinko, Canadian Solar and Mundra," said Jason Dymbort, Executive Vice President, General Counsel and Secretary, First Solar. "We believe that this is consistent with USPTO's 'Settled Expectations' doctrine, which is underpinned by the principle that the longer a patent has been in force, the stronger and more settled the patent owner's expectations should be. The patents at issue in each of these matters were issued in 2015 and 2017, respectively, long before each of these manufacturers' petitions were filed."
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Elon Musk Calls Solar Energy the 'Linchpin' of Global Power Transition, Boosting CSIQ Stock
- Positive Market Reaction: Elon Musk's declaration at the 2026 World Economic Forum that solar energy is the 'linchpin' of the global power transition has led to a rally in solar stocks, particularly Canadian Solar (CSIQ), which saw a 6.85% increase, reflecting market optimism about solar's future.
- Power Bottleneck Issue: Musk highlighted the significant electrical bottleneck created by the rapid growth of AI, asserting that solar energy is essential as the primary power source for AI data centers, thereby establishing a fundamental demand floor that reassures investors about the industry's prospects.
- Criticism of U.S. Tariffs: Musk's direct criticism of U.S. solar tariffs as 'artificial barriers' that inflate deployment costs signals a potential shift towards technological competition rather than protectionism, which could reshape market dynamics and benefit companies like First Solar.
- Space Solar Prospects: Musk predicted that the lowest-cost energy for AI would soon come from space-based solar satellites launched by SpaceX, aiming for viability within two to three years, a visionary outlook that could revolutionize the energy landscape.

First Solar (FSLR) Wins Patent Challenge Against JinkoSolar, Mundra Solar, and Canadian Solar
- Patent Victory: The U.S. Patent and Trademark Office denied three invalidation applications from JinkoSolar, Mundra Solar, and Canadian Solar, securing First Solar's TOPCon solar cell technology patents and reinforcing its market position.
- Legal Proceedings: First Solar's ongoing patent infringement lawsuits against the three companies in the U.S. District Court for Delaware demonstrate the company's commitment to protecting its intellectual property, potentially putting pressure on its competitors.
- Global Patent Coverage: First Solar's patents are valid in multiple countries, including the U.S., Australia, and Canada, with validity extending to 2030 and beyond, ensuring its technological edge in the global market.
- Future Growth Potential: With the confirmation of patent validity, First Solar can leverage its technological advantages to drive future business growth and market expansion, thereby enhancing investor confidence.






