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. 22, 1997
Filed:
May. 06, 1991
Applicant:
Inventors:
Jeremy Corwin Wright, Los Altos, CA (US);
George V Guittard, Cupertino, CA (US);
Assignee:
Alza Corporation, Palo Alto, CA (US);
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
A61K / ;
U.S. Cl.
CPC ...
424473 ; 424467 ; 424468 ; 6048921 ;
Abstract
A drug delivery device is disclosed for delivering a drug to the intestine and the colon. The device comprises external means for delaying the delivery of drug in the stomach, and hydrophobic means for preventing the passage of fluid through the delay means.