ALEXANDRIA, Va., Jan. 28 -- United States Patent no. 12,533,413, issued on Jan. 27, was assigned to ABLE Corp. (Tokyo) and NATIONAL UNIVERSITY CORPORATION KOBE UNIVERSITY (Hyogo, Japan).

"Virus inactivation method, method for manufacturing protein drug, and system for purifying solution" was invented by Kazuhisa Uchida (Kobe, Japan), Shutaro Ishikawa (Tokyo), Satoshi Tomita (Tokyo) and Kensaku Kanada (Kobe, Japan).

According to the abstract* released by the U.S. Patent & Trademark Office: "A virus inactivation method is provided. The method includes irradiating a solution containing an artificially expressed antibody or antibody fragment with ultraviolet rays in the presence of a radical scavenger. The irradiating only aggregates 5% or le...