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.

Date of Patent:
Jul. 22, 1997

Filed:

May. 04, 1995
Applicant:
Inventors:

Jeffrey H Roffman, Jacksonville, FL (US);

Timothy A Clutterbuck, Jacksonville, FL (US);

Yulin X Lewis, Ponte Vedra Beach, FL (US);

Edgar V Menezes, Jacksonville, FL (US);

Assignee:
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
G02B / ;
U.S. Cl.
CPC ...
351161 ; 3511 / ; 3511 / ; 351174 ; 351176 ;
Abstract

Non-ballasted, eyelid rotationally stabilized designs are disclosed for use in toric or multifocal toric contact lenses. The back surface of the lens includes a toric or multifocal toric surface and also thin top and bottom zones (slab offs) to achieve eyelid rotational orientation and stabilization. The advantage of this technical approach is in mold manufacturing, wherein the design allows the use of any chosen power spherical stock front mold.


Find Patent Forward Citations

Roffman, Jeffrey. (1997). Rotationally stable contact lens designs (U.S. Patent No. 5650837). U.S. Patent and Trademark Office. https://idiyas.com/patent/badge/5650837

Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile

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