Chinese-Canadian solar module manufacturer Canadian Solar announced that the United States Court of Appeals for the Federal Circuit has dismissed with prejudice Maxeon’s patent infringement suit in the Federal District Court. The decision formally terminates the remaining litigation between the two companies, following the Patent Trial and Appeal Board’s January ruling that invalidated the Maxeon patent claims asserted against Canadian Solar.
“Further, the U.S. Court of Appeals for the Federal Circuit vacated the relevant portion of the Patent Trial and Appeal Board (PTAB) decision relating to Maxeon’s remaining claim,” Canadian Solar said in a statement. “In Final Written Decisions issued in January 2026, the PTAB ruled in Canadian Solar’s favor, finding all Maxeon patent claims asserted against the Company in the federal court litigation invalid. Canadian Solar welcomes the dismissal of the lawsuit and the final resolution of these patent claims. The ruling provides important clarity and reinforces Canadian Solar’s claims of non-infringement.”
Singapore-based Maxeon had filed the patent infringement lawsuit against Canadian Solar in the US District Court for the Eastern District of Texas in March 2024. The case involved an unspecified TOPCon solar cell technology.
Maxeon previously sued Canadian Solar in Japan for patent infringement in 2020. In the lawsuit, Maxeon alleged that Canadian Solar Japan infringed upon its Japan Patent No. JP6642841B2, which is related to its shingled solar modules. The two companies reached a settlement agreement in April 2022.
Canadian Solar has faced similar patent claims in the United States. PV manufacturer Solaria filed three different patent infringement claims against the company, also related to the process of separating photovoltaic strips from solar cells for use in shingled modules.
Meanwhile, in November 2023, Maxeon also sued Chinese competitor Aiko Solar Energy, as well as wholesaler Memedo GmbH, for alleged patent infringement regarding a specific design related to the architecture of back contact solar cells. In May 2025, a Dutch court rejected Maxeon’s request for a preliminary injunction, and in December 2025, Maxeon expanded the legal action to Aiko and its distributors in Germany.
This content is protected by copyright and may not be reused. If you want to cooperate with us and would like to reuse some of our content, please contact: [email protected].
This content is protected by copyright and may not be reused. If you want to cooperate with us and would like to reuse some of our content, please contact: [email protected].
Comments
Please login to comment
The new issue of pv magazine Global is out now!
Available in print and digital – get your copy today!
Entries open in seven categories: Modules, Inverters, BoS, BESS, Manufacturing, Sustainability, Projects.
April 01 – August 31, 2026
Tuesday, August 11, 2026
3:00 pm – 4:00 pm CEST, Berlin, Paris, Madrid
A two-day conference in Austin, Texas, bringing together leaders in US solar manufacturing, equipment specification, and factory execution.
Tuesday, August 18, 2026
7:00 pm – 8:00 pm CEST, Berlin, Paris, Madrid
Tuesday, August 25, 2026
10:00 am – 11:00 am CEST, Berlin, Paris, Madrid
Saudi Arabia is accelerating its clean energy transition—join the SunRise Arabia Clean Energy Conference 2026 in Riyadh to explore how solar PV and energy storage are powering its digital economy.
Thursday, August 27, 2026
5:30 am – 6:30 am CEST, Berlin, Paris, Madrid
pv magazine USA hosts its third multi-day virtual event on advancing U.S. solar and energy storage markets, covering financing, supply chains, and distributed energy’s role in grid resilience.
Thursday, October 7, 2026
11:00 am – 12:30 pm CEST, Berlin, Paris, Madrid
Showcase your brand across all our platforms: from 13 websites in 7 languages to our magazines, daily newsletters, industry events and more. Reach your audience the right way!
You have no items in your basket.
