ALEXANDRIA, Va., Feb. 3 -- United States Patent no. 12,539,273, issued on Feb. 3, was assigned to Boke Zhang (Canton, Mass.).

"External nano liniment for gout and preparation method thereof" was invented by Boke Zhang (Canton, Mass.).

According to the abstract* released by the U.S. Patent & Trademark Office: "An external nano liniment for gout and a preparation method thereof are provided. The external nano liniment for gout includes a cream phase and nanoparticles dispersed in the cream phase, wherein the nanoparticles are a coating structure having a water phase, an oil phase and a water phase in sequence from inside to outside, an active ingredient used for treating gout is embedded or dispersed in the water phase and/or the oil phase ...