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:
Sep. 05, 1995
Filed:
Oct. 06, 1993
Applicant:
Inventor:
Daniel P Cafaro, Santa Ana, CA (US);
Assignee:
Allergan, Inc., Irvine, CA (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
C11D / ; C11D / ;
U.S. Cl.
CPC ...
252135 ; 8507 ; 25217412 ; 252D / ; 422 28 ; 424 7804 ; 427-21 ; 427164 ; 436192 ; 436264 ; 514839 ; 514840 ;
Abstract
A composition including a neutralizing system and a sequestering agent is described which prevents the accumulation of inorganic deposits on contact lenses, particularly when used regularly in a conventional hydrogen peroxide disinfection regimen. The neutralizing system includes at least one reducing agent, a reductase, or both. The sequestering agent preferably is gluconic acid, a polymetaphosphate or their salts. Sodium hexametaphosphate is the most preferred sequestering agent; catalase is the most preferred agent for use as the neutralizing system.