ALEXANDRIA, Va., Aug. 12 -- United States Patent no. 12,384,865, issued on Aug. 12, was assigned to PEGAVISION Corp. (Taoyuan, Taiwan).
"Contact lens material and contact lens" was invented by Wei-An Yeh (Taoyuan, Taiwan) and Ting-Yu Li (Taoyuan, Taiwan).
According to the abstract* released by the U.S. Patent & Trademark Office: "A contact lens material includes: a hydrophilic monomer, a crosslinking agent, an initiator, and a siloxane monomer. Based on a total weight of the contact lens material being 100 parts by weight, an amount of the siloxane monomer is between 5 parts by weight and 50 parts by weight. A chemical empirical formula of the siloxane monomer is: CaHbOcNdSie, in which C represents carbon atoms, a is a positive number bet...