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:
Mar. 22, 2011
Filed:
Jan. 05, 2004
Applicants:
Rong-kun Chang, Rockville, MD (US);
Niraj Shah, Owings Mills, MD (US);
Inventors:
Rong-Kun Chang, Rockville, MD (US);
Niraj Shah, Owings Mills, MD (US);
Assignee:
Supernus Pharmaceuticals, Inc., Rockville, MD (US);
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
A61F 13/00 (2006.01); A61K 9/24 (2006.01);
U.S. Cl.
CPC ...
Abstract
Disclosed are pharmaceutical compositions, particularly oral dosage forms, which comprise two or more enteric coating materials, either as a coating or as part of a matrix dosage form, and methods of making and using the same. The compositions are characterized by having a sustained release profile at lower pH and an accelerated dissolution profile at higher pH.