First Solar ends ITC patent investigation but keeps TOPCon lawsuits active

The dispute centers on American Patent 9,130,074, a silicon TOPCon patent First Solar acquired through a 2013 technology-company purchase. The withdrawn ITC case had named a broad group of module suppliers, while the remaining federal lawsuits keep the core intellectual-property fight alive. First Solar characterized the move as procedural and linked its trade strategy to new Section 232 tariffs on polysilicon derivatives.