ALEXANDRIA, Va., Dec. 9 -- United States Patent no. 12,492,517, issued on Dec. 9, was assigned to Capillary Concrete LLC (Loxahatchee, Fla.).

"Equestrian arena surface filtration system and related methods" was invented by Martin Sternberg (Wellington, Fla.).

According to the abstract* released by the U.S. Patent & Trademark Office: "An equestrian arena surface filtration system includes a plurality of wash drains configured to be buried below an arena surface and each wash drain having a coupling. The system also includes a wash pipe coupled to the plurality of wash drains via a respective coupling and a plurality of wash boxes. Each of the wash boxes has a stub pipe passing therethrough and the stub pipe has an upper end and a lower end...