First Solar is escalating its legal defense of its intellectual property by targeting competitors in the crystalline silicon market. The company has filed a lawsuit in the United States District Court for the District of Delaware against JA Solar and American Panel Solutions LLC. This move aims to protect proprietary manufacturing methods for high-efficiency solar cells.
Alleged Infringement of TOPCon Manufacturing Patents
The litigation centers on US Patent No. 9,130,074, which covers specific methods used to manufacture Tunnel Oxide Passivated Contact (TOPCon) crystalline silicon (c-Si) photovoltaic solar cells. First Solar alleges that JA Solar—including its entities in Vietnam and International—alongside American Panel Solutions LLC, have engaged in the unauthorized use of this patented technology. According to Jason Dymbort, Executive Vice President and General Counsel at First Solar, the company intends to hold these parties accountable and reinforce the necessity for TOPCon manufacturers operating within the United States to adhere to established intellectual property frameworks. This legal action follows a July 2024 announcement regarding First Solar's ownership of the TOPCon portfolio.
Strategic Value of the TetraSun Patent Portfolio
First Solar’s legal position is anchored in its 2013 acquisition of TetraSun, Inc., which secured the foundational TOPCon patents. The company maintains a global footprint for these rights, with issued patents spanning the United States, China, the European Union, Japan, and several other markets, including Australia and South Korea. These protections are slated to remain valid through 2030 and beyond. While First Solar primarily focuses on thin-film PV technology, this litigation highlights its aggressive strategy to monetize and defend the crystalline silicon intellectual property it holds. The company is currently conducting infringement investigations against several leading crystalline silicon solar cell manufacturers to safeguard its technological assets.
Key Takeaways
- First Solar filed a lawsuit against JA Solar and American Panel Solutions LLC in the District of Delaware.
- The dispute involves US Patent No. 9,130,074, covering TOPCon crystalline silicon solar cell manufacturing.
- The patent portfolio, acquired via TetraSun, Inc., includes protections in multiple regions through at least 2030.
EnergyInsyte's Take
In our view, this lawsuit signals a shift from passive patent holding to active enforcement in the high-efficiency solar segment. By targeting JA Solar and American Panel Solutions, First Solar is testing the legal boundaries of TOPCon technology usage in the U.S. market. This aggressive stance suggests that as crystalline silicon competition intensifies, the value of proprietary manufacturing processes will become a primary battlefield for market share and technological dominance.
Questions & Answers
Which specific technology is at the center of this legal dispute?
The lawsuit concerns the manufacturing methods for Tunnel Oxide Passivated Contact (TOPCon) crystalline silicon (c-Si) photovoltaic solar cells, protected under US Patent No. 9,130,074.
How did First Solar acquire the rights to these TOPCon patents?
First Solar obtained the US TOPCon patents and their international counterparts through its 2013 acquisition of TetraSun, Inc.
What is the projected lifespan of First Solar's TOPCon patent protections?
The company states that its issued patents in various global jurisdictions have validities extending to 2030 and beyond.
Who are the primary defendants named in the Delaware District Court filing?
The defendants include JA Solar Technology Co., Ltd., JA Solar International, Ltd., JA Solar Vietnam Co., Ltd., JA Solar Industrial Corp., and American Panel Solutions LLC.
Source: First Solar
