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. 02, 1997
Filed:
Jun. 07, 1995
Applicant:
Inventors:
Assignee:
Cygnus, Inc., Redwood City, CA (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
A61F / ;
U.S. Cl.
CPC ...
424448 ; 424449 ; 514946 ;
Abstract
A combination permeation enhancer for increasing the permeability of skin to sex steroids such as estrogens and progestogens comprising a polyhydric thioalcohol of 2 to 6 carbon atoms having at least one mercapto group and at least one hydroxy group and an aliphatic carboxylic acid of 8 to 24 carbon atoms or an ester thereof.