Patents by Inventor Don P. Metzgar

Don P. Metzgar has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).

  • Process for detoxifying influenza B virus
    Patent number: 4057626
    Abstract: A detoxified influenza virus of the B group is obtained by treating an inactivated virus with formaldehyde.
    Type: Grant
    Filed: October 8, 1976
    Date of Patent: November 8, 1977
    Assignee: Richardson-Merrell Inc.
    Inventors: Don P. Metzgar, Raymond H. Newhart