Patents by Inventor Robert E. Buchan

Robert E. Buchan 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).

  • Electric water heater analyzer
    Patent number: 4833398
    Abstract: An electric testing system to be attached to a water heater to permit instantaneous testing of the operability of each heating element comprising a separate branch circuit including each heating element and a current flow detecting device.
    Type: Grant
    Filed: October 12, 1988
    Date of Patent: May 23, 1989
    Inventor: Robert E. Buchan