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:
Sep. 10, 1991
Filed:
Jun. 03, 1988
Applicant:
Inventors:
Dilip R Sanvordeker, Irvine, CA (US);
Sau-Hung S Leung, Corona, CA (US);
Assignee:
Watson Laboratories, Inc., Corona, CA (US);
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
A61F / ; A61K / ;
U.S. Cl.
CPC ...
424435 ; 424434 ; 424443 ; 424448 ; 424484 ; 424486 ; 424 78 ;
Abstract
A mucoadhesive carried suitable for a therapeutic agent is disclosed. This carrier allows controlled release of the therapeutic agent via mucosal tissue. The mucoadhesive carrier comprises a Monolithic polymer matrix that is anhydrous but hydratable, and amorphous fumed silica. The silica enhances the mucoadhesive properties of the carrier. An optional water-insoluble barrier film or layer can be secured to the polymer matrix to provide a non-adhering face.