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:
Dec. 01, 1992
Filed:
Feb. 14, 1992
Applicant:
Inventors:
Nouman Muhammad, Long Valley, NJ (US);
Michael Harris, Hackettstown, NJ (US);
Jay Weiss, East Brunswick, NJ (US);
Russell U Nesbitt, Somerville, NJ (US);
Assignee:
Warner-Lambert Company, Morris Plains, NJ (US);
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
A61K / ; A61K / ;
U.S. Cl.
CPC ...
424482 ; 424 7824 ; 424472 ; 424440 ; 424441 ; 424480 ; 424494 ; 424495 ; 424497 ;
Abstract
The present invention pertains to semi-enteric drug delivery systems which comprise (a) an inert core, (b) a first coating layer over the core comprising a medicament, and (c) a second coating layer over the first coating layer comprising a mixture of methacrylic acid copolymer, type C, and povidone present in a ratio by weight of from about 2:1 to about 24:1, respectively.