Patents by Inventor Dean G. Stevens

Dean G. Stevens 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).

  • Isolation of protective functions in electrical power systems
    Patent number: 11522358
    Abstract: Systems, devices, and methods include protective functions in an electrical power system. For example, a processing subsystem may include a first processor and a second processor. The first processor and the second processor may operate independently. A memory subsystem may comprise a first memory section and a second memory section. A memory management subsystem may enable memory access between the first processor and the first memory section and disable memory access between the first processor and the second memory section. The memory management subsystem may further enable memory access between the second processor and the second memory section and disable memory access between the second processor and the first memory section. A protection subsystem may include the first processor and the first memory section and enable a protection function. The second processor and the second memory section may provide a second function that operates independently of the protection function.
    Type: Grant
    Filed: May 18, 2020
    Date of Patent: December 6, 2022
    Assignee: Schweitzer Engineering Laboratories, Inc.
    Inventors: Lisa Gayle Nelms, Dean G. Stevens, Paul Stoaks
  • ISOLATION OF PROTECTIVE FUNCTIONS IN ELECTRICAL POWER SYSTEMS
    Publication number: 20210359508
    Abstract: Systems, devices, and methods include protective functions in an electrical power system. For example, a processing subsystem may include a first processor and a second processor. The first processor and the second processor may operate independently. A memory subsystem may comprise a first memory section and a second memory section. A memory management subsystem may enable memory access between the first processor and the first memory section and disable memory access between the first processor and the second memory section. The memory management subsystem may further enable memory access between the second processor and the second memory section and disable memory access between the second processor and the first memory section. A protection subsystem may include the first processor and the first memory section and enable a protection function. The second processor and the second memory section may provide a second function that operates independently of the protection function.
    Type: Application
    Filed: May 18, 2020
    Publication date: November 18, 2021
    Applicant: Schweitzer Engineering Laboratories, Inc.
    Inventors: Lisa Gayle Nelms, Dean G. Stevens, Paul Stoaks