ALEXANDRIA, Va., Dec. 31 -- United States Patent no. 12,510,769, issued on Dec. 30, was assigned to PEGAVISION Corp. (Taoyuan, Taiwan).
"Contact lens and manufacturing method thereof" was invented by Han-Yi Chang (Taoyuan, Taiwan), Li-Tan Chang (Taoyuan, Taiwan), Wan-Rong Tang (Taoyuan, Taiwan), Yi-Chiou Chang (Taoyuan, Taiwan) and Yu-Cheng Hu (Taoyuan, Taiwan).
According to the abstract* released by the U.S. Patent & Trademark Office: "A contact lens includes a lens body and a color ink layer. The color ink layer is embedded in the lens body and includes a plurality of color ink membrane thicknesses. The color ink membrane thicknesses are different from each other. The color ink layer includes a plurality of color ink elements, and the c...