ALEXANDRIA, Va., June 16 -- United States Patent no. 12,305,198, issued on May 20, was assigned to GLOBAL LIFE SCIENCES SOLUTIONS USA LLC (Marlborough, Mass.).

"Virus purification and formulation process" was invented by John J. Vicalvi Jr. (Marlborough, Mass.), Edward G. Hayman (Hanover, N.H.) and Joseph Makowiecki (Oxford, Mass.).

According to the abstract* released by the U.S. Patent & Trademark Office: "Disclosed herein is provided a virus purification and formulation process for purifying a flavivirus represented by one of a Yellow Fever Virus, Japanese Encephalitis virus, Dengue virus, and West Nile virus. The highly purified flavivirus virus product is characterized as having a low level of sucrose without significant virus loss su...