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:
Apr. 11, 2000
Filed:
Mar. 27, 1997
Applicant:
Inventors:
John M Hilfinger, Ann Arbor, MI (US);
Beverly L Davidson, Iowa City, IA (US);
Steven J Beer, Iowa City, IA (US);
John R Crison, Ann Arbor, MI (US);
Gordon L Amidon, Ann Arbor, MI (US);
Assignee:
Other;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
A61K / ; A61F / ; B01J / ; B32B / ;
U.S. Cl.
CPC ...
424501 ; 424426 ; 424502 ; 264-41 ; 264-43 ; 264-433 ; 264-47 ; 42840221 ;
Abstract
A controlled release delivery system includes a functional gene vector in a biodegradable polymeric microsphere encapsulating the vector. The present invention further provides a method of making a controlled release delivery system by encapsulating the functional gene vector in a biologically degradable polymeric microsphere.