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:
Nov. 23, 1993
Filed:
Sep. 05, 1991
Applicant:
Inventors:
Robert J Druskis, Webster, NY (US);
Rose Ann Milne, Penfield, NY (US);
Dennis Hahn, Rochester, NY (US);
Assignee:
Bausch & Lomb Incorporated, Rochester, NY (US);
Attorneys:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
B29D / ;
U.S. Cl.
CPC ...
264-26 ; 134 254 ; 134 29 ; 252 41 ; 252 / ; 264-23 ; 264334 ; 264337 ; 264344 ;
Abstract
An improved method for manufacturing hydrophilic polymeric devices wherein surfactants are added to the hydration bath to assist in the mold release and processing of hydrophilic polymeric devices, especially hydrophilic contact lenses.
Druskis, Robert. (1993). Method of using surfactants as contact lens processing aids (U.S. Patent No. 5264161). U.S. Patent and Trademark Office. https://idiyas.com/patent/badge/5264161
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile