According to news on June 15, Singapore-based Maxeon Solar Technologies has revealed that it has filed a patent infringement case against China-based Tongwei Solar and its German subsidiary, Tongwei Solar GmbH. Maxeon said it filed the lawsuit with the Dusseldorf district court in Germany. It claims that Tongwei infringed on its European Patent No. EP3522045 B1 for solar cell panel technology, which Maxeon uses in its Performance Line solar modules. Tongwei said it has differentiated its technology and products from Maxeon.