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. 23, 1990
Filed:
Jun. 07, 1985
Applicant:
Inventors:
John R Cardinal, Old Lyme, CT (US);
William J Curatolo, Old Lyme, CT (US);
Charles D Ebert, Brewster, NY (US);
Assignee:
Pfizer Inc., New York, NY (US);
Primary Examiner:
Int. Cl.
CPC ...
A61K / ; A61K / ; A61K / ;
U.S. Cl.
CPC ...
424418 ; 424422 ; 424451 ; 424460 ; 424461 ; 424457 ; 424484 ; 424488 ; 424489 ; 424493 ; 424499 ; 424 88 ; 424 854 ; 424 941 ; 514-2 ; 514 21 ; 514-8 ; 514 23 ; 514 54 ; 514 55 ; 514964 ; 514965 ; 6048901 ; 6048911 ;
Abstract
Compositions for the controlled and prolonged release of macromolecular compounds comprise a porous matrix of chitosan having dispersed therein the macromolecular compound. Examples of macromolecules used in the composition are pharmacologically active ones such as peptide hormones, e.g. growth hormone.