Patents by Inventor Donald R. Beussink

Donald R. Beussink 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).

  • Methods for packaging a pressure or vacuum sensitive product
    Patent number: 5519984
    Abstract: Methods for packaging a pressure or vacuum sensitive product, such as an ultrasound contrast media comprised of a gas-filled microshpere or microbubble, or sealing such a product in a single-compartment syringe, in a manner that does not utilize pressure or vacuum in the process, are provided.
    Type: Grant
    Filed: March 16, 1995
    Date of Patent: May 28, 1996
    Assignee: Mallinckrodt Medical, Inc.
    Inventors: Donald R. Beussink, Ronald W. Hagen