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:
May. 22, 1990
Filed:
May. 13, 1988
Applicant:
Inventors:
Nabil N Youssef, North Logan, UT (US);
Gene W Miller, Providence, UT (US);
Assignee:
Other;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
C05G / ;
U.S. Cl.
CPC ...
71 27 ; 71904 ; 71 6412 ; 71903 ;
Abstract
A soil amendment material and an associated process for the preparation thereof, comprising a water swellable hydrophilic polymer infused with high concentrations of plant nutritive salts. The amendment is prepared by repeated soaking of hydrophilic swellable polymer particles in a solution of nutritive salts in water, followed by heat application to drive off the entrained water, leaving the nutrients entrapped in the polymer particles.