Revenue from the Company’s Remote Power Patent constituted 100% of the Company’s revenue for the three and six months ended June 30, 2020 and June 30, 2019. Revenue from one licensee constituted 100% of the Company’s revenue for the three months ended June 30, 2020. Revenue from four licensees constituted approximately 90% of the Company’s revenue for the six months ended June 30, 2020. Revenue from four licensees constituted approximately 86% of the Company’s revenue for the three months ended June 30, 2019 and revenue from four licensees constituted approximately 79% of the Company’s revenue for the six months ended June 30, 2019. At June 30, 2020, the Company receivables from two licensees constituted 100% of the royalties receivables. At December 31, 2019, royalty receivables from four licensees constituted in the aggregate approximately 90% of the Company’s royalty receivables.