https://www.cnet.com/roadshow/news/nikola-motor-tesla-semi-lawsuit-design-patent/

Nikola Motor Company filed a lawsuit this week against Tesla over allegations of design-patent infringement, Reuters reports. In the filing, Utah-based Nikola alleges that Tesla's infringement has harmed the company to the tune of some $2 billion, because it has "caused confusion among customers," the suit states.

The suit focuses on three key parts of the Tesla Semi. Nikola claims Tesla infringed upon design patents for the cab's silhouette, its wraparound windshield and its mid-entry door.