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:
Aug. 11, 1998
Filed:
Oct. 08, 1996
Applicant:
Inventors:
Amitava Gupta, Bethesda, MD (US);
Ronald D Blum, Roanoke, VA (US);
Assignee:
Innotech, Inc., Roanoke, VA (US);
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
G02C / ; G02C / ;
U.S. Cl.
CPC ...
351161 ; 351176 ;
Abstract
An optical preform has a predetermined spherical curve on a concave surface of the optical preform, a predetermined spherical curve on a convex surface of the optical preform and a near add power. A thin resin is applied to the concave surface of the optical preform and molded to form a toric layer by a mold having a toric, convex mold surface. The resin layer is then cured and the mold removed to form a finished ophthalmic lens.