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:
Sep. 10, 1996
Filed:
Aug. 09, 1993
Applicant:
Inventors:
Eric J Roos, Marlborough, MA (US);
Chia-Ming Chiang, Foster City, CA (US);
Tsung-Min Hsu, Taipei, TW;
Assignee:
Cygnus, Inc., Redwood City, CA (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
A61L / ;
U.S. Cl.
CPC ...
424449 ; 424448 ; 424487 ; 602 54 ;
Abstract
Matrix-type transdermal drug delivery devices for administering potent steroids such as ethinyl estradiol at a low flux steady-state rate over a multi-day period comprising a laminate of: (a) an occlusive backing layer and (b) a matrix layer of the drug completely dissolved at a loading of below 0.5% by weight in a 2-ethylhexyl acrylate copolymer.