Revenue from the Company’s Remote Power Patent constituted 100% of the Company’s revenue for the year ended December 31, 2020 and 2019. Revenue from one licensee constituted an aggregate of 94% of the Company’s revenue for the year ended December 31, 2020. Revenue from two licensees constituted approximately 69% of the Company’s revenue for the year ended December 31, 2019. At December 31, 2020, there were no royalty receivables from licensees. At December 31, 2019, royalty receivables from four licensees constituted approximately 90% of the Company’s royalty receivables.