ALEXANDRIA, Va., Jan. 13 -- United States Patent no. 12,521,948, issued on Jan. 13, was assigned to Alcon Inc. (Fribourg, Switzerland).
"Method for producing contact lenses" was invented by Alice Weimin Liu (Duluth, Ga.), Daryl Reece (Atlanta), Kirk Cooper (Mansfield, Texas), Shridhar Natarajan (Arlington, Texas), John Janders (Fort Worth, Texas), Uwe Haken (Norcross, Ga.) and Stacey Elliott (Pleasanton, Calif.).
According to the abstract* released by the U.S. Patent & Trademark Office: "The invention provides a method producing contact lenses, comprising the step of: separating the mold into the male and female mold halves, with the silicone hydrogel contact lens adhered on one of the male and female mold halves; bring a shaped ultrasoni...