Patents by Inventor Philip A Holliday

Philip A Holliday 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).

  • Device for energy load control
    Patent number: 5903213
    Abstract: A system for receiving inputs including ripple signals, input port conditions and clock conditions, and operating on information contained therein, receives a ripple signal, converts the signal to a digital form, and operates on multiple outputs that can act as interfaces with other peripheral devices depending on information in the received signal. The system can be used as a load control device in an electrical network of an industrial, domestic or commercial complex in conjunction with other load control devices.
    Type: Grant
    Filed: November 4, 1996
    Date of Patent: May 11, 1999
    Assignee: Southpower Limited
    Inventors: James G Hodge, Philip A Holliday