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:
Jan. 07, 1992
Filed:
Jan. 02, 1990
Applicant:
Inventors:
Mostyn P Embrey, Oxford, GB;
Neil B Graham, Dunbartonshire, GB;
Assignee:
National Research Development Corporation, London, GB;
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
A61K / ; A61K / ; A61L / ; A01N / ;
U.S. Cl.
CPC ...
424486 ; 424427 ; 424433 ; 424436 ; 424409 ; 424445 ; 424408 ; 424449 ; 424464 ; 424 7838 ; 523122 ;
Abstract
A controlled release composition comprising an active substance other than a prostaglandin and a polymeric carrier therefor comprising residues having a ratio of number average molecular weight to functionality greater than 1000 which comprises polyethylene oxide and are cross-linked through urethane groups.