Vertical Aerospace Ltd NYSE: EVTL
On October 7, 2026, Vertical Aerospace Ltd. (NYSE: EVTL) disclosed via a Form 6--K filing that its wholly owned subsidiary, Vertical Aerospace Group Ltd., filed a patent infringement counterclaim against Archer Aviation Inc. in the U.S. District Court for the Eastern District of Texas. The counterclaim asserts that Archer's Midnight eVTOL aircraft infringes U.S. Patent No. 12,747,027, covering electric propulsion system cooling technology. Vertical is seeking injunctive relief to halt alleged infringement alongside monetary damages. The filing escalates intellectual property litigation between the two advanced air mobility competitors following Archer's earlier design patent claims against Vertical's Valo aircraft.