Patents by Inventor Charles W. Dennett

Charles W. Dennett 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).

  • Portable laser power measuring apparatus
    Patent number: 6072573
    Abstract: Apparatus for measuring power in a laser-beam includes a transmissive diffuser for diffusely expanding the laser-beam and a photon detector for receiving the diffusely-expanded laser-beam and generating an electrical signal in response thereto. Electronic circuitry including a microprocessor is provided for interpreting the electrical signal as a measure of power in the laser-beam. A display device is provided for displaying the interpreted signal.
    Type: Grant
    Filed: July 15, 1998
    Date of Patent: June 6, 2000
    Assignee: Coherent, Inc.
    Inventors: Christopher J. Kruger, Gerald H. Williams, Robert R. Naquin, Charles W. Dennett
  • Portable laser power measuring apparatus
    Patent number: 5805277
    Abstract: Apparatus for measuring power in a laser-beam includes a transmissive diffuser for diffusely expanding the laser-beam and a photon detector for receiving the diffusely-expanded laser-beam and generating an electrical signal in response thereto. Electronic circuitry including a microprocessor is provided for interpreting the electrical signal as a measure of power in the laser-beam. A display device is provided for displaying the interpreted signal.
    Type: Grant
    Filed: August 6, 1997
    Date of Patent: September 8, 1998
    Assignee: Coherent, Inc.
    Inventors: Christopher J. Kruger, Gerald H. Williams, Robert R. Naquin, Charles W. Dennett