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. 02, 2014
Filed:
Mar. 05, 2010
Applicants:
Ramesh Muthusamy, Pune, IN;
Mohan Gopalkrishna Kulkarni, Pune, IN;
Inventors:
Ramesh Muthusamy, Pune, IN;
Mohan Gopalkrishna Kulkarni, Pune, IN;
Assignee:
Council of Scientific & Industrial Research, New Delhi, IN;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
C08F 283/02 (2006.01); C08F 283/01 (2006.01);
U.S. Cl.
CPC ...
C08F 283/01 (2013.01); C08F 220/06 (2013.01); C08F 283/01 (2013.01);
Abstract
Graft copolymer (P) which exhibit pH dependent swelling/dissolution properties comprising a hydrophobic back-bone and graft chains comprising acidic monomer. This Graft copolymer (P) do not swell or dissolve at acidic pH prevalent in the stomach and they swell/dissolve at near neutral pH prevalent in the intestinal region. The graft copolymer (P) is useful for the development of drug delivery formulations particularly for oral drug delivery formulations.