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:
Oct. 26, 1993
Filed:
Dec. 23, 1991
Applicant:
Inventors:
Fu-Pao Tsao, Lawrenceville, GA (US);
Paul C Nicolson, Dunwoody, GA (US);
Susan A Littlefield, Duluth, GA (US);
Assignee:
Ciba-Geigy Corporation, Ardsley, NY (US);
Attorneys:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
A61K / ; A61K / ;
U.S. Cl.
CPC ...
424427 ; 424 7804 ; 424429 ; 514642 ; 514912 ;
Abstract
A method of imparting antimicrobial activity to an ophthalmic composition includes the step of adding a polyquaternary ammonium salt to the composition. The method may be employed, for example, for disinfecting a contact lens or preserving a solution, ointment or suspension.
Tsao, Fu-Pao. (1993). Method of imparting antimicrobial acitivity to an ophthalmic composition (U.S. Patent No. 5256420). U.S. Patent and Trademark Office. https://idiyas.com/patent/badge/5256420
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile