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. 17, 1997
Filed:
Jul. 06, 1994
Applicant:
Inventors:
Ray Jia Lo, San Leandro, CA (US);
Ernesto Noe Villafranca, Oakland, CA (US);
Assignee:
Zeneca Limited, London, GB;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
A01N / ;
U.S. Cl.
CPC ...
504116 ; 71DI / ; 424405 ; 424497 ; 514521 ; 514963 ;
Abstract
Microspheres containing an agriculturally active material are produced by mixing a liquid phase containing the agriculturally active material and optionally an emulsifying agent and an aqueous phase containing polyvinyl alcohol and adding a material selected from clays, silicas, starch, and starch derivatives, followed by spray drying.