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:
Oct. 05, 1976
Filed:
Dec. 19, 1974
Applicant:
Inventors:
Albrecht Harreus, Kelkheim, Taunus, DT;
Wolfgang Zimmermann, Frankfurt am Main, DT;
Assignee:
Hoechst Aktiengesellschaft, Frankfurt am Main, DT;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
C08L / ; B01J / ;
U.S. Cl.
CPC ...
260874 ; 252316 ; 264 92 ; 264301 ; 424 22 ; 424 33 ;
Abstract
An encapsulating material for drugs consisting of a modified polyvinyl alcohol which is a partially hydrolized graft copolymer of vinyl acetate on polyethylene oxide.
Harreus, Albrecht. (1976). Graft copolymers of vinyl acetate on polyethylene oxide as (U.S. Patent No. 3984494). U.S. Patent and Trademark Office. https://idiyas.com/patent/badge/3984494
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile