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:
Apr. 08, 2003
Filed:
Dec. 31, 1997
Applicant:
Inventors:
Rudolf Johannes Joseph Groenewegen, Heesch, NL;
Antonius Paulus Sam, Heesch, NL;
Herman Vromans, Oss, NL;
Hendrik de Nijs, Oss, NL;
Assignee:
Akzo Nobel, N.V., Arnhem, NL;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
A61F 6/08 ;
U.S. Cl.
CPC ...
A61F 6/08 ;
Abstract
A ring-shaped device for controlled release of hormonal compounds comprising a first compartment having a non-medicated core of ethylene-vinyl-acetate copolymer encircled by a steroid hormone loaded ethylene-vinyl-acetate copolymer middle layer and a non-medicated outer layer of ethylene-vinyl-acetate copolymer. The device also contains a second compartment having a core of ethylene-vinyl-acetate copolymer loaded with a steroid hormone and a non-medicated outer layer of ethylene-vinyl-acetate copolymer.