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:
Nov. 30, 1993
Filed:
Mar. 31, 1992
Applicant:
Inventors:
John J Voorhees, Ann Arbor, MI (US);
Christopher E Griffiths, Ann Arbor, MI (US);
Charles N Ellis, Ann Arbor, MI (US);
Assignee:
The Regents of the University of Michigan, Ann Arbor, MI (US);
Primary Examiner:
Int. Cl.
CPC ...
A61K / ; A61K / ;
U.S. Cl.
CPC ...
424 59 ; 514725 ; 514844 ; 514847 ; 514944 ;
Abstract
Topical application of retinoic acid is effective for increasing the tyrosinase activity in the skin of people having light skin. Thus, topical application of retinoic acid may be used to effect a suntan in people having light skin and as a consequence protect against photodamage.