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. 12, 1995
Filed:
Oct. 14, 1993
Applicant:
Inventor:
David Meadows, Mission Viejo, CA (US);
Assignee:
Allergan, Inc., Irvine, CA (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G02C / ;
U.S. Cl.
CPC ...
3511 / ; 351177 ;
Abstract
A method for treating hydrophilic and rigid gas permeable contact lenses, as well as the manufacture of protein adhesion resistant and gas permeable enhanced lenses, is obtained through purging the hydrated contact lens, formed from polymer comprising hydrogen atoms, substantially all water and oxygen, and thereafter exposing the purged contact lens to a fluorine-containing gas in non-plasma conditions for a period of time and at a temperature sufficient to replace hydrogen atoms in the polymer in order to inhibit protein deposits on the contact lens. The conditions of fluorine exposure can be controlled in order to provide a gas permeable enhanced contact lens.