Patents by Inventor Garrett Liddil

Garrett Liddil 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 system for human presence correlation using carbon dioxide
    Patent number: 10145831
    Abstract: Method and system for detecting and/or quantifying recent human presence in an environment using a calculated rate of decay of carbon dioxide concentration levels within that environment. A sensor measures the change in carbon dioxide levels over time to calculate the rate of decay to equilibrium and extrapolate recent human presence. Also provided is a method and system for quantifying recent human activity in an environment using the calculated rate of decay to equilibrium.
    Type: Grant
    Filed: October 14, 2016
    Date of Patent: December 4, 2018
    Assignee: SRC, Inc.
    Inventors: Mark Angeli, John Durst, Garrett Liddil, Marcello M. DiStasio
  • Method and System For Human Presence Correlation Using Carbon Dioxide
    Publication number: 20180106775
    Abstract: Method and system for detecting and/or quantifying recent human presence in an environment using a calculated rate of decay of carbon dioxide concentration levels within that environment. A sensor measures the change in carbon dioxide levels over time to calculate the rate of decay to equilibrium and extrapolate recent human presence. Also provided is a method and system for quantifying recent human activity in an environment using the calculated rate of decay to equilibrium.
    Type: Application
    Filed: October 14, 2016
    Publication date: April 19, 2018
    Applicant: SRC, Inc.
    Inventors: Mark Angeli, John Durst, Garrett Liddil, Marcello M. DiStasio
  • Method and system for human presence correlation using carbon dioxide
    Patent number: 9470670
    Abstract: Method and system for detecting and/or quantifying recent human presence in an environment using a calculated rate of decay of carbon dioxide concentration levels within that environment. A sensor measures the change in carbon dioxide levels over time to calculate the rate of decay to equilibrium and extrapolate recent human presence. Also provided is a method and system for quantifying recent human activity in an environment using the calculated rate of decay to equilibrium.
    Type: Grant
    Filed: March 14, 2013
    Date of Patent: October 18, 2016
    Assignee: SRC, INC.
    Inventors: Mark Angeli, John Durst, Garrett Liddil, Marcello M. DiStasio
  • Method And System For Human Presence Correlation Using Carbon Dioxide
    Publication number: 20140278145
    Abstract: Method and system for detecting and/or quantifying recent human presence in an environment using a calculated rate of decay of carbon dioxide concentration levels within that environment. A sensor measures the change in carbon dioxide levels over time to calculate the rate of decay to equilibrium and extrapolate recent human presence. Also provided is a method and system for quantifying recent human activity in an environment using the calculated rate of decay to equilibrium.
    Type: Application
    Filed: March 14, 2013
    Publication date: September 18, 2014
    Applicant: SRC, INC.
    Inventors: Mark Angeli, John Durst, Garrett Liddil, Marcello M. DiStasio