ALEXANDRIA, Va., Dec. 9 -- United States Patent no. 12,492,461, issued on Dec. 9, was assigned to Universal Display Corp. (Ewing, N.J.).

"OVJP injection block" was invented by William E. Quinn (Whitehouse Station, N.J.), Craig Anthony Outten (Rydal, Pa.), Gregory McGraw (Yardley, Pa.) and Xin Xu (Plainsboro, N.J.).

According to the abstract* released by the U.S. Patent & Trademark Office: "A deposition device including an injection block and a print die is provided, which allows for vertical movement of the injection block while still maintaining connection between the print die and external gas sources. Also disclosed is an injection block suitable for such devices, which provides improved vertical range of motion and thermal consistency...