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. 30, 1996
Filed:
Dec. 09, 1993
Applicant:
Inventors:
Felix A Landrau, San Jose, CA (US);
Patricia S Campbell, Palo Alto, CA (US);
Arthur W Hall, Alviso, CA (US);
Juan M Harrison, Mountain View, CA (US);
Assignee:
ALZA Corporation, Palo Alto, CA (US);
Primary Examiner:
Int. Cl.
CPC ...
A61L / ; A61K / ; A61K / ;
U.S. Cl.
CPC ...
424449 ; 424486 ; 424435 ; 424448 ;
Abstract
This invention pertains to a sustained release delivery device for delivering a beneficial agent into the oral cavity of a patient. More particularly, the invention relates to a device comprising about 0.1% to about 20% by weight beneficial agent, about 40% to about 95% by weight ethylene vinyl acetate copolymer having a vinyl acetate content of about 4% to about 80% and about 1% to about 60% by weight polyvinyl pyrrolidone.