Patents by Inventor William J. Page

William J. Page 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).

  • Magnetostrictive waveguide position measurement apparatus with piezoceramic element
    Patent number: 5821743
    Abstract: A magnetostrictive waveguide position measuring apparatus includes a waveguide extending between opposed anchored ends. A magnet is displaceable along the waveguide and generates torsional strain in the waveguide in response to an electrical excitation signal transmitted along the waveguide. A piezoceramic element sensor is coupled to the waveguide to sense the torsional strain signal on the waveguide. A signal processor determines the relative elapsed time between the excitation signal and the output signal of the piezoceramic element to determine the position of the magnet along the waveguide. The sensor is coupled to the waveguide by a low resonance coupling medium.
    Type: Grant
    Filed: January 3, 1997
    Date of Patent: October 13, 1998
    Assignee: Patriot Sensors & Control Corporation
    Inventors: William J. Page, Jr., Richard D. Koski
  • Hyperproduction of poly-.beta.-hydroxybutyrate during exponential growth by mutant strains of Azotobacter vinelandii
    Patent number: 5096819
    Abstract: A mutant strain of Azotobacter vinelandii exhibits hyperproduction of poly-.beta.-hydroxybutyrates during its growth. Poly-.beta.-hydroxybutyrate yield is further enhanced when sugar beet molasses is used as carbon source.
    Type: Grant
    Filed: May 25, 1990
    Date of Patent: March 17, 1992
    Assignee: The Governors of the University of Alberta
    Inventors: William J. Page, Olga Knosp
  • Mutant strains of azotobacter vinelandii used for the hyperproduction of poly-.beta.-hydroxybutyrate during exponential growth
    Patent number: 5059536
    Abstract: A mutant strain of Azotobacter vinelandii exhibits hyper-production of poly-.beta.-hydroxybutyrate during its growth.
    Type: Grant
    Filed: December 21, 1990
    Date of Patent: October 22, 1991
    Assignee: The Governors of the University of Alberta
    Inventors: William J. Page, Olga Knosp