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:
Jan. 29, 2002
Filed:
Dec. 22, 1999
Applicant:
Inventors:
Patrick S. -L. Wong, Burlingame, CA (US);
David E. Edgren, Los Altos, CA (US);
Liang C. Dong, Sunnyvale, CA (US);
Crystal Pollock-Dove, Mountain View, CA (US);
Assignee:
Alza Corporation, Mountain View, CA (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
A61K 9/22 ; A61K 9/24 ;
U.S. Cl.
CPC ...
A61K 9/22 ; A61K 9/24 ;
Abstract
Controlled release of liquid, active agent formulations is provided by dispersing porous particles containing the liquid active agent formulation in osmotic, push-layer dosage forms. The dosage forms may provide for continuous or pulsatile delivery of active agents.