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:
Jan. 21, 2003
Filed:
Jul. 21, 2000
Applicant:
Inventor:
Berthold Nies, Fränkisch-Crumbach, DE;
Assignee:
Merck Patent Gesellschaft, Darmstadt, DE;
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
A61K 3/1722 ;
U.S. Cl.
CPC ...
A61K 3/1722 ;
Abstract
The invention relates to cross linked products of chitosan or gelatin and of a carboxylic acid di- or polyanhydride. These products form hydrogels with a wide variety of applications, preferably in the medical/pharmaceutical sector.
Nies, Berthold. (2003). Crosslinked products of biopolymers containing amino groups (U.S. Patent No. 6509039). U.S. Patent and Trademark Office. https://idiyas.com/patent/badge/6509039
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile