Patents by Inventor Harrison K. Clark

Harrison K. Clark 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).

  • Systems and method for HVDC transmission
    Patent number: 9997918
    Abstract: A system and method are provided for enabling multi-functional support of an extant synchronous alternating current (AC) grid. At least one extant electricity source and at least one extant electricity sink are connected by two or more high-voltage direct current (HVDC) transmission circuits connected in turn in series with each other with at least one pair of HVDC circuits interconnected through an intervening high-voltage AC (HVAC) point of interconnection. One or more of the HVDC transmission circuits includes a 2-terminal or a multi-terminal transmission link. A 2-terminal HVDC circuit is dedicated to connecting with the electricity sources and sinks.
    Type: Grant
    Filed: June 20, 2014
    Date of Patent: June 12, 2018
    Assignee: ATLANTIC GRID HOLDINGS LLC
    Inventors: Mohamed El-Gasseir, Harrison K. Clark