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:
Dec. 10, 2002
Filed:
Nov. 24, 1997
Applicant:
Inventor:
William J. Appleton, Rochester, NY (US);
Assignee:
Bausch & Lomb Incorporated, Rochester, NY (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G02C 7/02 ; G02C 7/04 ;
U.S. Cl.
CPC ...
G02C 7/02 ; G02C 7/04 ;
Abstract
Toric contact lenses are provided with markings that enable identification of the offset between the cylindrical axis of the toric zone and the ballast axis. Surfaces of the lenses include two markings, a first identifiable marking that is aligned with the cylindrical axis, and a second identifiable marking that is aligned with the ballast axis.