US Patent Issued to Essilor International on Jan. 13 for "Method of preparing wafers with stretched polymers for wafer thermoforming and injection molding ophthalmic lenses comprising said wafer" (Texas Inventors)

ALEXANDRIA, Va., Jan. 13 -- United States Patent no. 12,523,795, issued on Jan. 13, was assigned to Essilor International (Charenton-le-pont, France).

"Method of preparing wafers with stretched polymers for wafer thermoforming and injection molding ophthalmic lenses comprising said wafer" was invented by Zbigniew Tokarski (Dallas), Ahmed Drammeh (Dallas), Eric Begg (Dallas) and Mauricio Amaya Gutierrez (Dallas).

According to the abstract* released by the U.S. Patent & Trademark Office: "A method of forming an ophthalmic laminate lens, includes: forming a planar laminate (100) by adhering a first stretched polymer layer (115) to a first side of a thermoplastic elastomer layer (120), and adhering a second polymer layer (125) to a second sid...