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:
Mar. 29, 1988
Filed:
Dec. 15, 1986
Applicant:
Inventors:
Merrill Goldenberg, Teaneck, NJ (US);
Karl F Mueller, New York, NY (US);
Assignee:
Ciba-Geigy Corporation, Ardsley, NY (US);
Attorneys:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
C08F / ;
U.S. Cl.
CPC ...
526273 ; 5253265 ; 5253273 ;
Abstract
A contact lens possessing a wettable surface in its aqueous environment of use fabricated from a hydrophobic addition polymer incorporating between about 0.5 and about 30% weight oxirane substituted units in the backbone thereof, wherein the outer surfaces of said lens contain an effective hydrophilic inducing amount of a reaction product of said oxirane substituted units of the formula ##STR1## wherein R is hydrogen or methyl;