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. 16, 1999
Filed:
Jan. 10, 1997
Applicant:
Inventors:
John Y Park, Tustin, CA (US);
Daniel Cafaro, Walnut Creek, CA (US);
Anthony J Dziabo, Lake Forest, CA (US);
Assignee:
Allergan, Waco, TX (US);
Primary Examiner:
Int. Cl.
CPC ...
A61K / ;
U.S. Cl.
CPC ...
424682 ; 252106 ; 514-6 ;
Abstract
Compositions for storing contact lenses include a liquid medium containing a polyanionic component, preferably a water soluble polyanionic component, in an amount effective to provide a hydration layer on the surface of said contact lens. The composition has a viscosity of less than 50 cps at 25.degree. C., an osmolality of at least about 200 mOsm/kg, and preferably a pH in the range of about 6 to about 9.