ALEXANDRIA, Va., June 19 -- United States Patent no. 12,329,651, issued on June 17, was assigned to TRM IP Management LLC (Newport Beach, Calif.).

"Artificial disc replacement device" was invented by Robert S. Bray Jr. (Newport Beach, Calif.).

According to the abstract* released by the U.S. Patent & Trademark Office: "An artificial disc replacement device is disclosed. The device includes an upper endplate and a lower endplate, as well as a core assembly disposed between the endplates. The core assembly includes a core member with a curved engaging surface and a matrix member. The matrix member is more compressible than the core member. The curved engaging surface of the core member engages a recess in the upper endplate so that the upper...