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:
May. 30, 1989
Filed:
May. 13, 1987
Applicant:
Inventors:
Hubert Bader, Mainz, DE;
Diether Ruppel, Frankfurt am Main, DE;
Axel Walch, Frankfurt am Main, DE;
Michael Magerstadt, Liederbach, DE;
Assignee:
Hoechst Aktiengesellschaft, Frankfurt am Main, DE;
Primary Examiner:
Int. Cl.
CPC ...
C08G / ;
U.S. Cl.
CPC ...
528328 ; 424 78 ; 525420 ; 528310 ; 528327 ; 528341 ; 528345 ;
Abstract
Polyamides in which amino acids are incorporated in the polymer backbone via two amino or carboxyl groups and which carry in the .alpha.-position to the amide structure a functional group which is responsible for degradation and active compound release are highly suitable for the preparation of biologically degradable active compound depot preparations having controlled release of the active compound.