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. 03, 2013
Filed:
Feb. 09, 2007
David E. Edgren, Los Altos, CA (US);
Patrick S.-l. Wong, Burlingame, CA (US);
Gurdish K. Bhatti, Fremont, CA (US);
Shu LI, Union City, CA (US);
Robert R. Skluzacek, Newark, CA (US);
David E. Edgren, Los Altos, CA (US);
Patrick S.-L. Wong, Burlingame, CA (US);
Gurdish K. Bhatti, Fremont, CA (US);
Shu Li, Union City, CA (US);
Robert R. Skluzacek, Newark, CA (US);
Alza Corporation, Vacaville, CA (US);
Abstract
A membrane system comprising an interior wall, a fluid-permeable exterior wall surrounding the interior wall and an internal compartment defined by the membrane system, wherein fluid permeability of the interior wall is responsive to osmolarity of an osmotic core within the internal compartment are disclosed. A controlled release dosage form comprising the membrane system and a process for delivering an osmotically active formulation from an osmotic pump over an extended period of time are also disclosed.
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile