ALEXANDRIA, Va., Jan. 28 -- United States Patent no. 12,534,421, issued on Jan. 27, was assigned to CARBO CERAMICS INC. (Houston).
"Pellets containing agricultural treatment materials and methods of making same" was invented by Steve Canova (Macon, Ga.), Keith Hogan (Dublin, Ga.) and Brett A. Wilson (Cypress, Texas).
According to the abstract* released by the U.S. Patent & Trademark Office: "Pellets for use in agricultural applications are disclosed herein. The pellets can include a porous substrate having an internal interconnected porosity. An agricultural treatment material can be disposed into at least a portion of the internal interconnected porosity of the porous substrate."
The patent was filed on Jan. 21, 2022, under Application ...