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:
Sep. 23, 2003
Filed:
Apr. 27, 2000
Applicant:
Inventors:
William R. Wilber, Avon Lake, OH (US);
Jian-Hwa Guo, Hudson, OH (US);
Edward S. Greenberg, Solon, OH (US);
Assignee:
Noveon IP Holdings Corp., Cleveland, OH (US);
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
A61K 9/20 ; A61K 9/26 ; A61K 9/14 ;
U.S. Cl.
CPC ...
A61K 9/20 ; A61K 9/26 ; A61K 9/14 ;
Abstract
Solid dosage articles such as pharmaceutical tablets for the controlled release of a desired compound such as an active ingredient are directly compressed from a flowable, compressible mixture of the active ingredient, a slightly cross-linked rheology modifying polymer or copolymer, and one or more excipients. The rheology modifying polymer or copolymer is a granulated powder of suitable particle size and is generally made from one or more unsaturated (di)carboxylic acids, half ester thereof, and other optional monomers.