ALEXANDRIA, Va., June 12 -- United States Patent no. 12,297,050, issued on May 13, was assigned to SANDBOX ENTERPRISES LLC (Katy, Texas).

"System for storing, transporting and dispensing wet sand to a hydraulic fracturing operation at a well site" was invented by George Garcia (Katy, Texas), Casey Taylor (Katy, Texas), Derek Ussery (Katy, Texas) and Chad Trueheart (Katy, Texas).

According to the abstract* released by the U.S. Patent & Trademark Office: "Described is a system for conveying wet sand. The system includes containers with a slip coating for storing wet sand. Each container includes an outlet formed in a bottom portion to facilitate removal of the wet sand from the container to a hopper. Each hopper has end walls, side walls, a...