US Patent Issued to Jiangxi Dentalbright Technology on Sept. 22 for "Gingival barrier protective resin" (Chinese Inventors)

ALEXANDRIA, Va., Sept. 24 -- United States Patent no. 12,740,921, issued on Sept. 22, was assigned to Jiangxi Dentalbright Technology Co. Ltd. (Jiujiang, China).

"Gingival barrier protective resin" was invented by Junyuan Qin (Jiujiang, China), Wei Min (Jiujiang, China) and Juan Huang (Jiujiang, China).

According to the abstract* released by the U.S. Patent & Trademark Office: "A gingival barrier protective resin includes 40 to 70 parts of a matrix resin, 20 to 40 parts of a diluent resin, 5 to 20 parts of an inorganic filler, 5 to 20 parts of an ointment base, 0.1 to 0.5 parts of an initiator, 1 to 5 parts of a co-initiator, and 0.1 to 1 part of a polymerization inhibitor."

The patent was filed on Jan. 16, 2026, under Application No. 19...