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. 25, 1984
Filed:
Jun. 13, 1983
Applicant:
Inventors:
Eric L Nelson, Santa Ana, CA (US);
Richard L Harris, Dana Point, CA (US);
Assignee:
Nelson Research & Development Co., Irvine, CA (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
A61K / ; C11D / ; C11D / ;
U.S. Cl.
CPC ...
424280 ; 252106 ; 252173 ;
Abstract
A method for sterilizing contact lenses and especially hydrophilic (soft) contact lenses comprising contacting a contact lens for a period of time sufficient to sterilize the lens with a substantially isotonic, aqueous composition having a pH between about 6-9 comprising about 0.01 to about 0.3 percent by weight of an ene-diol compound and from about 0.1 to about 25 ppm copper ion. Preferred ene-diol compounds are ascorbic acid and dihydroxymaleic acid.
Quick Actions:
Nelson, Eric. (1984). Contact lens preserving solution containing ascorbic acid or salts (U.S. Patent No. 4490389). U.S. Patent and Trademark Office. https://idiyas.com/patent/badge/4490389
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile