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:
May. 08, 1990
Filed:
Nov. 16, 1987
Applicant:
Inventors:
Wen-Ghih Tsang, Lexington, MA (US);
Andrew S Magee, Weston, MA (US);
Assignee:
Damon Biotech, Inc., Needham Heights, MA (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
A61K / ; A61K / ; B01J / ;
U.S. Cl.
CPC ...
264-43 ; 264-432 ; 264-433 ; 424424 ; 424455 ; 424457 ; 424493 ; 424497 ; 435178 ; 514963 ;
Abstract
A method for sustained release of molecules from gels or microcapsules has been developed. The method is based on controlling the gel state using chelating agents or ion transfer. The method is particularly useful for controlling the rate of release of insolubilized proteins into physiological solutions.