Patents by Inventor Jan Arwood Northby

Jan Arwood Northby 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).

  • Method and apparatus for measuring particle motion using scattered radiation
    Patent number: 7453569
    Abstract: A method and apparatus for measuring particle motion using electromagnetic radiation uses beams of radiation modulated with a distinct frequency and/or phase. A particle traversing these beams scatters a portion of the radiation. Scattered radiation, which retains its modulation information, is then detected, and a cross-correlation technique is used to quantify the particle's motion, for example, particle velocity.
    Type: Grant
    Filed: February 17, 2006
    Date of Patent: November 18, 2008
    Inventor: Jan Arwood Northby
  • Method and apparatus for measuring particle motion optically
    Patent number: 7012688
    Abstract: A method and apparatus for measuring particle motion using electromagnetic radiation uses beams of radiation modulated with a distinct frequency and/or phase. A particle traversing these beams scatters a portion of the radiation. Scattered radiation, which retains modulation information, is then detected, and a cross-correlation technique is used to quantify the particle's motion, for example, particle velocity.
    Type: Grant
    Filed: July 31, 2003
    Date of Patent: March 14, 2006
    Inventor: Jan Arwood Northby
  • Method and apparatus for measuring particle motion optically
    Publication number: 20040021875
    Abstract: A method and apparatus for measuring particle motion using electromagnetic radiation uses beams of radiation modulated with a distinct frequency and/or phase. A particle traversing these beams scatters a portion of the radiation. Scattered radiation, which retains modulation information, is then detected, and a cross-correlation technique is used to quantify the particle's motion, for example, particle velocity.
    Type: Application
    Filed: July 31, 2003
    Publication date: February 5, 2004
    Inventor: Jan Arwood Northby