Tigo has filled 4 additional lawsuits against APSystems for intellectual property infringement

California — Tigo Energy has filed a new lawsuit against Altenergy Power Systems (APsystems), in addition to its current ongoing case.

The complaint includes four new patent infringement claims, as well as an additional claim from a patent asserted in the previously filed lawsuit.

The complaint was filed in the United States District Court for the Northern District of California. The total number of Patents-in-Suit in both cases now stands at six.

The complaint includes all APsystems legal entities in the US as well as in China.

The new complaint alleges that APsystems’ Sunspec-compliant products infringe the following U.S. patents: 8,653,689, 9,584,021, 9,966,848, 10,333,405, and 8,933,321.

The complaint centers around various systems and methods used in the PV module rapid shutdown unit.