US Patent Issued to GE Healthcare AS on Aug. 25 for "Continuous crystallisation method" (Norwegian Inventors)

ALEXANDRIA, Va., Aug. 25 -- United States Patent no. 12,715,838, issued on Aug. 25, was assigned to GE Healthcare AS (Oslo, Norway).

"Continuous crystallisation method" was invented by Torfinn Haaland (Lindesnes, Norway), Arne Askildsen (Lindesnes, Norway) and Heidi Kvande (Lindesnes, Norway).

According to the abstract* released by the U.S. Patent & Trademark Office: "The invention provides a method of purifying 5-acetamido-N,N'-bis(2,3-dihydroxypropyl)-2,4,6-triiodoisophathalamide, comprising adding a portion of acid to a stream comprising crude 5-acetamido-N,N'-bis(2,3-dihydroxypropyl)-2,4,6-triiodoisophathalamide in a solvent and continuously crystallising the 5-acetamido-N,N'-bis(2,3-dihydroxypropyl)-2,4,6-triiodoisophathalamide from ...