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. 08, 1991
Filed:
Aug. 21, 1989
Applicant:
Inventors:
Dennis Hahn, Rochester, NY (US);
Gary A Johansson, Rochester, NY (US);
Dominic V Ruscio, Webster, NY (US);
Christopher E Blank, Rochester, NY (US);
Assignee:
Bausch & Lomb Incorporated, Rochester, NY (US);
Primary Examiner:
Int. Cl.
CPC ...
B29D / ;
U.S. Cl.
CPC ...
264-11 ; 264-23 ;
Abstract
An improved method for manufacturing contact lenses wherein monomer or comonomer mixture is placed into a mold caivty and subjected to polymerization conditions to form a polymerized shape of desired shape wherein the improvement comprises the inclusion of a release agent in the monomeric mixture wherein said release agent comprises less than about three weight percent of said monomeric mixture and is chosen from a mixture of hydrophilic polymers with lipophilic compounds.