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:
Jan. 20, 2015
Filed:
Nov. 23, 2011
Applicant:
Jerome A. Legerton, San Diego, CA (US);
Inventor:
Jerome A. Legerton, San Diego, CA (US);
Assignee:
Vicoh, LLC, San Diego, CA (US);
Primary Examiner:
Int. Cl.
CPC ...
G02C 7/00 (2006.01); G02C 7/02 (2006.01); G02C 7/04 (2006.01);
U.S. Cl.
CPC ...
G02C 7/04 (2013.01); G02C 7/049 (2013.01); G02C 2202/04 (2013.01);
Abstract
The present invention is directed to a non-deforming contact lens for keratoconus patients having a displaced central zone. In particular, the central zone is displaced from the geometric center of the lens. The shape of the central zone is egg or spoon-shaped and is rotationally asymmetrical with one semi-meridian that is shorter than a corresponding semi-meridian. An intermediate transition zone is formed integral with the periphery of the central zone, and a peripheral zone is formed integral with the periphery of the intermediate transition zone, forming a round contact lens.