ALEXANDRIA, Va., June 4 -- United States Patent no. 12,318,442, issued on June 3, was assigned to Seqirus UK Ltd. (Berkshire, Great Britain).
"Preparation of influenza virus vaccine antigens" was invented by Christoph Haussmann (Marburg, Germany), Frank Hauschild (Marburg, Germany) and Bjorn Jobst (Marburg, Germany).
According to the abstract* released by the U.S. Patent & Trademark Office: "A number of improvements for preparing vaccine antigens from disintegrated influenza viruses are disclosed. A splitting step can be followed by detergent exchange. Splitting can take place in the presence of a buffer with a higher ionic strength and/or in the presence of phosphate buffer."
The patent was filed on Jan. 19, 2021, under Application No. ...