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. 22, 2003
Filed:
Jul. 14, 1999
Applicant:
Inventors:
Liang-Chang Dong, Sunnyvale, CA (US);
Patrick S. L. Wong, Burlingame, CA (US);
Vincent Joseph Ferrari, Foster City, CA (US);
Steven Espinal, Mountain View, CA (US);
Assignee:
Alza Corporation, Mountain View, CA (US);
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
A61K 9/48 ; A61K 9/64 ; A61K 9/66 ; A61K 9/24 ; A61F 1/300 ;
U.S. Cl.
CPC ...
A61K 9/48 ; A61K 9/64 ; A61K 9/66 ; A61K 9/24 ; A61F 1/300 ;
Abstract
A dosage form is disclosed comprising a semipermeable walled container that houses a capsule, which capsule comprises a drug formulation, a piston, and an osmotic composition. The dosage form delivers the drug formulation through a passageway at a controlled rate over a sustained-release period of time up to 24 hours.