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:
Oct. 27, 1998
Filed:
May. 09, 1997
Applicant:
Inventors:
Assignee:
LTS Lohmann Therapie-Systeme GmbH & Co. KG, Neuwied, DE;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
A61F / ; A61K / ;
U.S. Cl.
CPC ...
604307 ; 424449 ;
Abstract
A transdermal therapeutic system containing the active substance 17-.beta.-estradiol and optionally further active substances has a laminated structure positioned on a backing layer which is essentially impermeable to active substance and moisture, at least one matrix layer and optionally an adhesive layer. The at least one matrix layer or the adhesive layer contains anhydrous 17-.beta.-estradiol in crystalline form.