ALEXANDRIA, Va., Nov. 25 -- United States Patent no. 12,478,237, issued on Nov. 25, was assigned to United Services Automobile Association (USAA) (San Antonio).

"Drone-based mud softening treatment device" was invented by Carlos JP Chavez (San Antonio), Gregory David Hansen (Fuquay Varina, N.C.), Bradly Jay Billman (Celina, Texas), Kristina Suniga-Cabrera (San Antonio), Dwayne Phillip Wilson (Crossroads, Texas), Timothy Benjamin Czerlinsky (Dallas) and David Patrick Dixon (Boerne, Texas).

According to the abstract* released by the U.S. Patent & Trademark Office: "A mud treatment system that can be used during emergencies is disclosed. The system includes an autonomous vehicle carrying a mud treatment device. In response to information abo...