Patents by Inventor William P. Burkinshaw

William P. Burkinshaw 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: 5041220
    Abstract: A filter cartridge using hollow fiber tubes is provided in a housing and configuration constructed and arranged to fit most commercial filter housing systems without modification. The hollow fiber cartridge provide a multiple improvement in filtering capacity and life before requiring replacement over prior units.
    Type: Grant
    Filed: January 9, 1990
    Date of Patent: August 20, 1991
    Assignee: Minntech Corporation
    Inventors: Jeffrey A. Lee, William P. Burkinshaw, Louis C. Cosentino, Daniel T. West