Patents by Inventor Ian E. Sparrowhawk

Ian E. Sparrowhawk 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).

  • Valve and water heater
    Patent number: 6196162
    Abstract: A water heater and dispenser includes a heater reservoir and an expanded liquid reservoir. An outlet line includes a venturi valve with a port from the expanded liquid reservoir. Heated water in the expanded liquid reservoir is hence made use of.
    Type: Grant
    Filed: November 9, 1999
    Date of Patent: March 6, 2001
    Assignee: Beta Valve Systems Ltd.
    Inventor: Ian E. Sparrowhawk