Conti Temic Microelectronic and its subsidiary ADC Automotive Distance Control Systems, both Continental AG companies (1:21-cv-00826), have asked the Eastern District of Virginia for declaratory judgments of noninfringement and invalidity of a single patent, generally related to a “voltage-controlled oscillator” and held by NPE Arigna Technology Limited. Arigna sued a fleet of automakers, first in the Eastern District of Texas and then before the International Trade Commission (ITC), over that same patent, alleging infringement through the incorporation of certain radar sensor modules (involving NXP Semiconductors MR2001 oscillators). The Continental subsidiaries plead that among those automakers are customers that have sought its indemnification and defense.