ALEXANDRIA, Va., June 4 -- United States Patent no. 12,318,379, issued on June 3, was assigned to Camurus AB (Lund, Sweden).
"Opioid formulations" was invented by Fredrik Tiberg (Lund, Sweden), Ian Harwigsson (Lund, Sweden) and Markus Johnsson (Lund, Sweden).
According to the abstract* released by the U.S. Patent & Trademark Office: "A depot precursor formulation comprising: a) a controlled-release matrix; b) at least oxygen containing organic solvent; c) at least 12% by weigh of at least one active agent selected from buprenorphine and salts thereof, calculated as buprenorphine free base. Corresponding depot compositions and methods of treatment in pain management, by opioid maintenance and related methods are provided."
The patent was ...