ALEXANDRIA, Va., June 6 -- United States Patent no. 12,281,082, issued on April 22, was assigned to BEIJING SUMMER SPROUT TECHNOLOGY Co. LTD. (Beijing).
"Electroluminescent material and device" was invented by Qiang Wang (Beijing), Le Wang (Beijing), Junfei Wang (Beijing), Han Zhang (Beijing), Chi Yuen Raymond Kwong (Beijing) and Chuanjun Xia (Beijing).
According to the abstract* released by the U.S. Patent & Trademark Office: "Disclosed are an electroluminescent material and device. The compound is a compound formed by connecting an indole- and pyrrole-fused azamacrocycle to triazine or a similar structure thereof at a specific position and is used as the host material of the electroluminescent device. These novel compounds have signific...