Patents by Inventor James A. Herrick, JR.

James A. Herrick, JR. 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).

  • Method, system and transformer for mitigating harmonics
    Publication number: 20100090789
    Abstract: In one aspect a single-phase transformer is provided that includes: a primary side configured to receive a primary line to line voltage of a three-phase source; and a secondary side configured to output a secondary line to line voltage having a zero amplitude and substantially similar first and second line to neutral secondary voltages. In other aspects of the invention, systems and methods are provided for mitigating harmonics that employ the transformer.
    Type: Application
    Filed: June 5, 2009
    Publication date: April 15, 2010
    Inventors: Robert Schluter, James A. Herrick, JR.