Patents by Inventor Craig Tisserat

Craig Tisserat 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).

  • Flow through light scattering device
    Patent number: 6590652
    Abstract: A system for identifying microorganisms and other microscopic particles in a fluid, includes a laser that directs a laser beam (14) through a detect zone (20) and a plurality of photodetectors (30) that detect light scattered in different directions from a particle at the detect zone, and includes a carrier (110) that confines fluid to movement along a narrow path. The carrier includes a glass sphere (112) with a passage (116) for carrying the fluid. The spherical surface allows light scattered at a large angle from the direction of the laser beam, to pass through the glass sphere to its outside for detection there.
    Type: Grant
    Filed: January 29, 2002
    Date of Patent: July 8, 2003
    Assignee: PointSource Technologies, Inc.
    Inventors: Gregory Quist, Craig Tisserat
  • Flow through light scattering device
    Publication number: 20030086087
    Abstract: A system for identifying microorganisms and other microscopic particles in a fluid, includes a laser that directs a laser beam (14) through a detect zone (20) and a plurality of photodetectors (30) that detect light scattered in different directions from a particle at the detect zone, and includes a carrier (110) that confines fluid to movement along a narrow path. The carrier includes a glass sphere (112) with a passage (116) for carrying the fluid. The spherical surface allows light scattered at a large angle from the direction of the laser beam, to pass through the glass sphere to its outside for detection there.
    Type: Application
    Filed: January 29, 2002
    Publication date: May 8, 2003
    Inventors: Gregory Quist, Craig Tisserat