# First Solar’s Patent Lawsuit Against JinkoSolar: What It Means for the Solar Industry
As the solar industry continues to evolve, companies are locked in a competitive race to develop and protect cutting-edge solar technologies. Recently, a high-profile lawsuit has drawn attention within the solar sector—First Solar has filed a patent infringement claim against JinkoSolar over tunnel oxide passivated contact (TOPCon) solar technology. This lawsuit highlights broader tensions in the rapidly growing solar market and raises important questions about technology ownership and innovation in solar manufacturing.
## **Understanding the First Solar Lawsuit**
First Solar has initiated legal action against JinkoSolar in a U.S. federal court, alleging that the Chinese manufacturer has infringed on U.S. Patent No. 9,130,074. This patent relates to TOPCon technology, an advanced solar cell design that improves efficiency and performance.
First Solar acquired the patent in 2013 through its purchase of TetraSun, Inc. This intellectual property extends internationally, with registered patents in multiple countries, including the United States, China, Canada, and the European Union, among others. With validity extending to 2030 and beyond, this lawsuit signals a strong stance by First Solar in defending its
Original Article: https://pv-magazine-usa.com/2025/02/26/first-solar-sues-jinkosolar-for-alleged-topcon-patent-infringement/
