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. 02, 2002
Filed:
May. 25, 1999
Seung Seo Lee, Taejon-si, KR;
Chang Baeg Lim, Taejon-si, KR;
Chaul Min Pai, Taejon-si, KR;
Sujung Lee, Taejon-si, KR;
In Park, Taejon-si, KR;
Moon Gun Seo, Taejon-si, KR;
Heenam Park, Taejon-si, KR;
Samyang Corporation, , KR;
Abstract
A colonic drug delivery composition contains a first polysaccharide and a second polysaccharide wherein both polysaccharide are degradable by colonic enzymes and are mixed at a environmental pH of about 7 or above, without use of a cross-linking agent. A colon selective pharmaceutical composition and dosage form for oral delivery of a drug, diagnostic reagent, or mixture thereof includes the drug, diagnostic reagent, or mixture thereof in contact with the polysaccharide composition. A method of preparing such a colonic drug delivery composition and the colon selective pharmaceutical composition and dosage from are also disclosed.