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:
Jun. 09, 1981
Filed:
Jun. 15, 1979
Applicant:
Inventor:
Howard Jaffe, Gaithersburg, MD (US);
Assignee:
Primary Examiner:
Int. Cl.
CPC ...
B01J / ; A01N / ;
U.S. Cl.
CPC ...
252316 ; 424 19 ; 424 22 ; 424 32 ; 424 78 ;
Abstract
Pesticides, insect growth regulators and other substances are encapsulated by dissolving the substance to be encapsulated and a biodegradable polymer in a suitable organic solvent, dispersing the solution in an aqueous medium and stirring until the solvent evaporates to form a matrix of the substance in the polymer.