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:
Apr. 30, 1985
Filed:
Oct. 05, 1981
Applicant:
Inventors:
Nalinkant C Damani, Fort Worth, TX (US);
Haresh G Bhagat, Fort Worth, TX (US);
Ramon L McElhaney, Fort Worth, TX (US);
Assignee:
Alcon Laboratories, Inc., Fort Worth, TX (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
A61K / ; A61K / ;
U.S. Cl.
CPC ...
424 81 ; 514164 ; 514859 ;
Abstract
Anti-acne preparations include finely divided, dispersed particles of benzoyl peroxide and finely divided, dispersed particles of salicylic acid in an aqueous gel formed from carboxy vinyl polymer resins. The gels are prepared without loss of salicylic acid by fully hydrating the resin in an aqueous medium and allowing the resin to gel in the absence of an alkaline neutralizing agent.