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:
Apr. 23, 2013
Filed:
Apr. 28, 2003
Applicants:
William J. Bologna, Paris, FR;
Howard L. Levine, Oceanside, NY (US);
Inventors:
William J. Bologna, Paris, FR;
Howard L. Levine, Oceanside, NY (US);
Assignee:
Columbia Laboratories, Inc., Livingston, NJ (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
A61K 31/74 (2006.01);
U.S. Cl.
CPC ...
Abstract
The present invention relates to a delivery system for pharmaceutical compositions relying in part on an ionic interaction to control and facilitate release of the treating agent. More specifically, the invention relates to an extended controlled-release system having an ionic treating agent and an ionic polymer, wherein the polymer is sufficiently ionized to release the treating agent in a controlled manner over an extended period of time and the composition does not require an emulsion system for administering the treating agent.