Patents by Inventor Zachary J. Campbell

Zachary J. Campbell 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).

  • Fast water activity measurement system
    Patent number: 11579133
    Abstract: Methods and system for determining water activity of a sample material are disclosed in which a sample material is positioned in a water activity measurement device, a plurality of water activity values of the sample material are measured at a respective plurality of points of time, with the plurality of points in time preceding an equilibrium state of the water activity of the sample material, the plurality of water activity values over time are log-transformed, a trendline of the plurality of water activity values over time is calculated, and the trendline is extrapolated to determine an extrapolated water activity value of the sample material at the equilibrium state. These methods and systems can decrease the time needed to determine the water activity of the sample by reliably predicting and estimating water activity well before equilibrium is reached in the measurement chamber.
    Type: Grant
    Filed: March 16, 2020
    Date of Patent: February 14, 2023
    Assignee: METER GROUP, INC. USA
    Inventors: Scott H. Campbell, Gaylon S. Campbell, Benjamin J. Walden, Zachary J. Campbell
  • FAST WATER ACTIVITY MEASUREMENT SYSTEM
    Publication number: 20210285925
    Abstract: Methods and system for determining water activity of a sample material are disclosed in which a sample material is positioned in a water activity measurement device, a plurality of water activity values of the sample material are measured at a respective plurality of points of time, with the plurality of points in time preceding an equilibrium state of the water activity of the sample material, the plurality of water activity values over time are log-transformed, a trendline of the plurality of water activity values over time is calculated, and the trendline is extrapolated to determine an extrapolated water activity value of the sample material at the equilibrium state. These methods and systems can decrease the time needed to determine the water activity of the sample by reliably predicting and estimating water activity well before equilibrium is reached in the measurement chamber.
    Type: Application
    Filed: March 16, 2020
    Publication date: September 16, 2021
    Applicant: METER GROUP, INC. USA
    Inventors: Scott H. Campbell, Gaylon S. Campbell, Benjamin J. Walden, Zachary J. Campbell