US Patent Issued to PRO-TOX on May 12 for "Vacuum drying method for botulinum toxin" (South Korean Inventors)

ALEXANDRIA, Va., May 12 -- United States Patent no. 12,624,346, issued on May 12, was assigned to PRO-TOX INC. (Gyeonggi-Do, South Korea).

"Vacuum drying method for botulinum toxin" was invented by Hak Kun Kim (Gyeonggi-do, South Korea), Jin Hee Ahn (Seoul, South Korea) and Seul Gi Kwon (Seoul, South Korea).

According to the abstract* released by the U.S. Patent & Trademark Office: "The present invention relates to a vacuum drying method for botulinum toxin, and specifically to a vacuum drying method for botulinum toxin, comprising the steps of: a) first drying of a solution containing botulinum toxin at a temperature of 5deg C. to 30deg C. under a pressure of 0.01 to 2 mmHg; b) a second drying of the first-dried product obtained in step ...