ALEXANDRIA, Va., June 4 -- United States Patent no. 12,318,508, issued on June 3, was assigned to 33 MEDICAL INC. (Boca Raton, Fla.).

"Compositions for treatment of discogenic pain, and processes for making and using the same" was invented by Eric Olson (Washington, Utah), Jeff Zisselman (Boca Raton, Fla.), Nick Manesis (Escondido, Calif.) and Richard Wesley Sierk III (Rancho Palos Verdes, Calif.).

According to the abstract* released by the U.S. Patent & Trademark Office: "Compositions for treatment of discogenic pain are discussed herein. In various embodiments, the composition includes PMMA microparticles, Pluronic(R) surfactant, PBS, and a radio marker. In some embodiments, the PMMA microparticles have a particle size distribution betw...