Patents by Inventor David Crawford Lawrence

David Crawford Lawrence 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).

  • METHODS OF SECURELY CONTROLLING UTILITY GRID EDGE DEVICES
    Publication number: 20220337082
    Abstract: Methods of securely controlling a utility grid edge device are provided. A method of securely controlling a utility grid edge device includes receiving renewed security information at a node that includes cryptographic circuitry. Moreover, the method includes controlling an operation of the utility grid edge device via the node, after receiving the renewed security information. Related nodes and utility grid edge devices are also provided.
    Type: Application
    Filed: January 25, 2022
    Publication date: October 20, 2022
    Inventors: David Crawford Lawrence, Marshal Dwayne Bradley, Thomas E. Burdick, Jessica C. Modeen, Nicholas J. Kennedy, Matthew A. DeVenny, Caleb J. Lloyd, C. Wilson Kinard
  • Architecture neutral device abstraction layer for interfacing devices and applications
    Patent number: 6393341
    Abstract: An interface layer and method is provided that permits applications, without modification, to operate with any type of meter. The interface comprises an abstraction layer and library or repository of descriptions specific to each meter type. The abstraction layer provides the capability to communicate with any meter through a variety of applications. Upon receiving an application request, the abstraction layer retrieves the description for the particular meter type from the repository and processes the request. In this manner, only one data representation is needed for applications to communicate with a wide variety of meters.
    Type: Grant
    Filed: December 7, 1999
    Date of Patent: May 21, 2002
    Assignee: ABB Automation Inc.
    Inventors: David Crawford Lawrence, Sergei Udin, Eugene Wilson Hodges, IV, John Chalmers Sutton, III, Edward John Beroset, Sean Michael Scoggins