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. 21, 1992
Filed:
Feb. 17, 1989
Applicant:
Inventors:
Wallace C Snipes, Pine Grove Mills, PA (US);
Neena Agarwala, University Park, PA (US);
Assignee:
Zetachron, Inc., State College, PA (US);
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
A61K / ; A61K / ; A01N / ; A01N / ;
U.S. Cl.
CPC ...
424386 ; 424408 ; 424426 ; 424457 ; 424462 ; 424484 ; 71 6411 ; 71 65 ;
Abstract
A sustained release composition for releasing a biologically active compound into an aqueous liquid environment comprises a biologically active compound dispersed in a matrix which progressively erodes in contact with a liquid environment, the matrix having a melting point below the melting point of the biologically active compound, and the matrix comprising a mixture of