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.

Date of Patent:
Mar. 28, 1989

Filed:

Feb. 26, 1987
Applicant:
Inventors:

Diane E Nedberge, Los Altos, CA (US);

Patricia S Campbell, Palo Alto, CA (US);

Robert M Gale, Los Altos, CA (US);

Su I Yum, Los Altos, CA (US);

Assignee:

ALZA Corporation, Palo Alto, CA (US);

Attorneys:
Primary Examiner:
Int. Cl.
CPC ...
A61K / ;
U.S. Cl.
CPC ...
424448 ; 424449 ; 424D / ; 514841 ; 514874 ;
Abstract

A transdermal delivery system for the administering of ethinyl estradiol and levonorgestrel, in combination, utilizing a polymer matrix having the drug formulation along with a permeation enhancer dispersed throughout.


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