ALEXANDRIA, Va., Dec. 31 -- United States Patent no. 12,509,758, issued on Dec. 30, was assigned to KEEPS BIOPHARMA INC. (Hwaseong-si, South Korea).
"Hybrid stick mask and manufacturing method therefor, mask assembly including hybrid stick mask, and organic light emitting display device using same" was invented by Jungho Kim (Hwaseong-si, South Korea).
According to the abstract* released by the U.S. Patent & Trademark Office: "Disclosed are a hybrid stick mask and a manufacturing method therefor, a mask assembly including a hybrid stick mask, and an organic light emitting display device using same. A hybrid stick mask, according to one embodiment of the present invention, comprises: a structural stick mask having a plurality of openings i...