Patents by Inventor John P. Woodnutt

John P. Woodnutt 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).

  • Lighting control system
    Patent number: 4508997
    Abstract: Lights (LP) are controlled by a control unit (CU) which, in response to a remotely and/or automatically generated signal (MASTER OFF), interrupts the lighting temporarily (preferably by repeatedly flashing them on and off) to provide a warning and switches off the lighting after a delay period unless inhibited by a local switch (S1).
    Type: Grant
    Filed: April 15, 1983
    Date of Patent: April 2, 1985
    Assignee: Delmatic Limited
    Inventor: John P. Woodnutt