ParkerVision, Inc. is engaged in the business of fundamental wireless technologies and products. The Company has designed and developed proprietary radio frequency (RF) technologies and integrated circuits based on those technologies, and it licenses the Company’s technologies to others for use in wireless communication products. The Company has patent enforcement actions ongoing in various United States district courts against mobile handsets, smart television and other wireless fidelity (WiFi) product providers, as well as semiconductor suppliers, for the infringement of several of its RF patents. Its RF technologies enable transmission and reception of RF carriers at low power consumption, thereby enabling extended battery life, and certain size, cost, performance and packaging advantages. The Company is focused on the enforcement of its intellectual property rights through licensing efforts and patent infringement litigation. Its wholly owned German subsidiary is ParkerVision GmbH.