Patents by Inventor Frank J. Beissel, IV

Frank J. Beissel, IV 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).

  • Patent number: 7871827
    Abstract: Methods and devices for removing small negatively charged molecules from a biological sample mixture that uses an anion exchange material.
    Type: Grant
    Filed: September 14, 2005
    Date of Patent: January 18, 2011
    Assignee: 3M Innovative Properties Company
    Inventors: Ranjani V. Parthasarathy, Raj Rajagopal, Erin E. Olson, Frank J. Beissel, IV, William Bedingham, Barry W. Robole
  • Patent number: 7192560
    Abstract: Methods and devices for removing small negatively charged molecules from a biological sample mixture that uses an anion exchange material.
    Type: Grant
    Filed: December 20, 2001
    Date of Patent: March 20, 2007
    Assignee: 3M Innovative Properties Company
    Inventors: Ranjani V. Parthasarathy, Raj Rajagopal, Erin E. Olson, Frank J. Beissel, IV, William Bedingham, Barry W. Robole