ALEXANDRIA, Va., June 9 -- United States Patent no. 12,649,606, issued on June 9.

"Grinding tray for plant based smoking material" was invented by Barry Keith Morris (Richmond, Va.).

According to the abstract* released by the U.S. Patent & Trademark Office: "A grinding tray for plant based smoking material including a top tray assembly and a bottom tray assembly. The top tray assembly includes a top tray, a top recessed collection area that allows a ground material to be collected when sliding, top bump grinds that grind the plant material when the user rubs it against said top bump grinders, and a ring support that allows a rounded grinder to be held in place. The bottom tray assembly includes a bottom tray symmetrical with respect to th...