ALEXANDRIA, Va., Jan. 28 -- United States Patent no. 12,534,428, issued on Jan. 27, was assigned to Pharmapotheca A Inc. (Dover, Del.).

"Non-distillative process for manufacturing high purity amphetamines" was invented by Harold Meckler (Albany, N.Y.), Darryl Cleary (Albany, N.Y.), Karl Popp (Albany, N.Y.), Heidi Schlager (Albany, N.Y.), Mozhgan Navidi (Albany, N.Y.) and Joshua Malone (Albany, N.Y.).

According to the abstract* released by the U.S. Patent & Trademark Office: "The invention provides a non-distillative process for manufacturing amphetamine and substituted amphetamines, comprising obtaining a highly pure phosphoramidate compound, converting the highly pure phosphoramidate compound to an amphetamine sulfate compound, concentra...