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:
Jul. 05, 1994
Filed:
Sep. 04, 1992
Applicant:
Inventors:
Jeri D Wright, Dublin, CA (US);
Brian L Barclay, Sunnyvale, CA (US);
David R Swanson, Palo Alto, CA (US);
Assignee:
ALZA Corporation, Santa Clara, CA (US);
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
A61K / ;
U.S. Cl.
CPC ...
424473 ; 424472 ; 424468 ;
Abstract
A dosage form is disclosed comprising a wall surrounding a compartment, which comprises a first composition comprising a carboxymethylcellulose and a second composition comprising a higher molecular weight carboxymethylcellulose. The first composition comprises a dosage amount of drug that delivers from the dosage form at a controlled rate over time.