Patents by Inventor David Adams Gilmour Tait

David Adams Gilmour Tait 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).

  • Finger operable control device
    Patent number: 5657012
    Abstract: A finger operable control device that includes a sensor having five conductive plates. The conductive plates are coupled to a detector circuit arranged to sense capacity imbalance due to the presence of a finger or an earthed object on or by one or more of the conductive plates. The device is utilized as a mouse or joystick.
    Type: Grant
    Filed: December 20, 1991
    Date of Patent: August 12, 1997
    Inventor: David Adams Gilmour Tait