ALEXANDRIA, Va., Nov. 18 -- United States Patent no. 12,473,237, issued on Nov. 18, was assigned to CARBO CERAMICS INC. (Houston).
"Proppant particles formed from slurry droplets and methods of use" was invented by Benjamin T. Eldred (Houston), Brett A. Wilson (Cypress, Texas), Clayton F. Gardinier (Houston) and Robert Duenckel (Colorado Springs, Colo.).
According to the abstract* released by the U.S. Patent & Trademark Office: "Proppant particles formed from slurry droplets and methods of use are disclosed herein. The proppant particles can include a sintered ceramic material and can have a size of about 80 mesh to about 10 mesh and an average largest pore size of less than about 20 microns. The methods of use can include injecting a hyd...