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. 04, 1997
Filed:
May. 27, 1994
Applicant:
Inventors:
Chel W Lew, San Antonio, TX (US);
Keith Branly, Brandon, FL (US);
Jesse H Gaytan, San Antonio, TX (US);
Assignee:
Micro Flo Company, Mulberry, FL (US);
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
A01N / ;
U.S. Cl.
CPC ...
504116 ; 504206 ; 504244 ; 504355 ; 504342 ; 424405 ; 424409 ; 5147722 ; 71DI / ;
Abstract
Agriculturally effective active ingredients are encapsulated in a 'salt sensitive' polymeric binder. Normally, the binder is water soluble and would release the active ingredient when wetted. In the presence of a hardening salt to which the polymer is sensitive, the polymer becomes water insoluble for so long as it is in chemical contact with the hardening salt. This sensitivity is used to control the circumstances and timing of the release of the encapsulated active ingredient.