Patents by Inventor Matthew M. Then

Matthew M. Then 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).

  • Two-factor authentication for wireless field devices
    Patent number: 11234125
    Abstract: A method for authenticating a user of a handheld field maintenance tool is provided. The method includes moving the handheld field maintenance tool into a proximity of a field device. The field device receives a primary key. The field device generates a secondary key and transmits the secondary key to a remote system. The remote system transmits the secondary key to the user of the handheld field maintenance tool. The field device receives the secondary key. The field device authenticates the user of the handheld field maintenance tool.
    Type: Grant
    Filed: August 9, 2019
    Date of Patent: January 25, 2022
    Assignee: Rosemount Inc.
    Inventor: Matthew M. Then
  • TWO-FACTOR AUTHENTICATION FOR WIRELESS FIELD DEVICES
    Publication number: 20210044973
    Abstract: A method for authenticating a user of a handheld field maintenance tool is provided. The method includes moving the handheld field maintenance tool into a proximity of a field device. The field device receives a primary key. The field device generates a secondary key and transmits the secondary key to a remote system. The remote system transmits the secondary key to the user of the handheld field maintenance tool. The field device receives the secondary key. The field device authenticates the user of the handheld field maintenance tool.
    Type: Application
    Filed: August 9, 2019
    Publication date: February 11, 2021
    Inventor: Matthew M. Then