Patents by Inventor David J. Culbertson

David J. Culbertson 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).

  • Virtual sensing system
    Patent number: 11970964
    Abstract: A method of predicting temperature of at least one location in a fluid flow system that has a heating system for heating fluid. The method includes obtaining a mass flow rate of fluid flow of the fluid flow system, obtaining at least one of a fluid outlet temperature and a fluid inlet temperature of a heater of the heating system, obtaining power provided to the heater, and calculating temperature at the at least one location based on a model of the fluid flow system and the obtained mass flow rate, fluid outlet temperature, and fluid inlet temperature.
    Type: Grant
    Filed: December 11, 2019
    Date of Patent: April 30, 2024
    Assignee: Watlow Electric Manufacturing Company
    Inventors: James N. Pradun, Sanhong Zhang, Jeremy J. Quandt, David P. Culbertson, Magdi Khair
  • Display screen with an icon
    Patent number: D642195
    Type: Grant
    Filed: June 18, 2010
    Date of Patent: July 26, 2011
    Assignee: Microsoft Corporation
    Inventors: Justin C. Marks, Ian M. Huff, David J. Culbertson
  • Display screen with an icon
    Patent number: D650788
    Type: Grant
    Filed: June 30, 2011
    Date of Patent: December 20, 2011
    Assignee: Microsoft Corporation
    Inventors: Justin C. Marks, Ian M. Huff, David J. Culbertson