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:
Feb. 21, 1989
Filed:
Oct. 14, 1986
Applicant:
Inventors:
Wallace C Snipes, Pine Grove Mills, PA (US);
Stephen J Wagner, Pennsylvania Furnace, PA (US);
Assignee:
Zetachron, Inc., State College, PA (US);
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
A61J / ;
U.S. Cl.
CPC ...
71 65 ; 42840224 ; 424457 ; 424465 ; 424468 ; 424469 ; 424408 ; 424 78 ; 514772 ; 514784 ; 71 6411 ;
Abstract
A sustained release composition for releasing a biologically active compound into an aqueous liquid environment comprises said biologically active compound dispersed in a bioerodible matrix, the matrix comprising a mixture of (a.) 5% to 95% by weight of a solid water-dispersible polyether diol having a molecular weight from about 1000 to about 20,000K selected from the group consisting of polyethylene glycols and polyethylene oxide-polypropylene oxide block copolymers, and