The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Sep. 15, 2026
Filed:
May. 23, 2023
Alcon Inc., Fribourg, CH;
Robert Carey Tucker, Johns Creek, GA (US);
Pushkar S. Varde, Athens, GA (US);
Weihong Lang, Suwanee, GA (US);
Paul William Oyler, Cumming, GA (US);
Alcon Inc., Fribourg, CH;
Abstract
The invention is directed to a sandwiched colored hydrogel contact lenses lens, comprising: a pupil section, a generally annular iris section surrounding the pupil section, wherein the iris section having at least one colored, printed, opaque, intermittent pattern, wherein the said pattern is covered by a clear donut shape layer shape, wherein the clear donut shape layer shape is on inner surface of lens to the observer and has a thickness at least 25 μm. And the method make such lenses using a common polypropylene base curve (BC Mold 1) and two different front curve molds (FC Mold 1, FC Mold 2) that provided different volume gaps to accommodate the size requirements of the two layers.