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. 02, 2002
Filed:
Mar. 23, 1999
Applicant:
Inventors:
David E. Edgren, El Granada, CA (US);
Patrick S.-L. Wong, Burlingame, CA (US);
Francisco Jao, San Jose, CA (US);
Yolanda M. Puga, Morgan Hill, CA (US);
Assignee:
ALZA Corporation, Mountain View, CA (US);
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
A61K 9/22 ;
U.S. Cl.
CPC ...
A61K 9/22 ;
Abstract
The present invention is directed to an active agent dosage form and methods of its fabrication which is useful for the prolonged delivery of an active agent formulation to a fluid environment of use. The active agent dosage form is a matrix that has on its surface one or more insoluble bands located in complementary grooves. The invention is also directed to articles of manufacture, methods and systems for fabricating the active agent dosage form.