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:
Jul. 13, 2004
Filed:
Oct. 25, 1996
Applicant:
Inventor:
Michael Roreger, Neuwied, DE;
Assignee:
Lohmann & Rauscher GmbH & Co., KG, Rengsdorf, DE;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
A61K 9/10 ; A61K 9/20 ; A61K 9/16 ; A61K 4/742 ; A61L 1/532 ;
U.S. Cl.
CPC ...
A61K 9/10 ; A61K 9/20 ; A61K 9/16 ; A61K 4/742 ; A61L 1/532 ;
Abstract
A collagen preparation for the controlled release of active substances is characterized in that it has mixtures of acid-insoluble collagens with different molecular weight distributions.