Patents by Inventor Arnstein Rekstad

Arnstein Rekstad 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).

  • Patent number: 12481256
    Abstract: A method and system for modelling industrial processes, including closed loop feedback processes. The system includes a sensor for measuring an input for the industrial process; and a processor configured to receive a measurement of the input from the sensor at an input time. The processor is also configured to implement a hybrid neural network model to output a derivative of the output at the input time, wherein the neural network model incorporates at least one neural network block and a first-principle block incorporating dynamic model having an ordinary differential equation defining the rate of change over time of the output as a function of the or each associated input; to input the derivative to an ordinary differential equation solver to predict the output at a subsequent time; and to output the prediction of the output at the subsequent time using the measured input.
    Type: Grant
    Filed: November 30, 2021
    Date of Patent: November 25, 2025
    Assignee: Siemens Energy AS
    Inventors: Esmaeil Jahanshahi, Arnstein Rekstad, Vegard Kleppe Torkelsen
  • Publication number: 20240036532
    Abstract: A method and system for modelling industrial processes, including closed loop feedback processes. The system includes a sensor for measuring an input for the industrial process; and a processor configured to receive a measurement of the input from the sensor at an input time. The processor is also configured to implement a hybrid neural network model to output a derivative of the output at the input time, wherein the neural network model incorporates at least one neural network block and a first-principle block incorporating dynamic model having an ordinary differential equation defining the rate of change over time of the output as a function of the or each associated input; to input the derivative to an ordinary differential equation solver to predict the output at a subsequent time; and to output the prediction of the output at the subsequent time using the measured input.
    Type: Application
    Filed: November 30, 2021
    Publication date: February 1, 2024
    Applicant: Siemens Energy AS
    Inventors: Esmaeil Jahanshahi, Arnstein Rekstad, Vegard Kleppe Torkelsen