Patents by Inventor John Lawrence Lebduska

John Lawrence Lebduska 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).

  • Energy conservation system
    Patent number: 4111259
    Abstract: A system for heating or cooling room air and heating hot water including a heat pump having heat exchangers connectable to heated and cooled liquid circulation loops, a tank for thermal energy storage, solar heat collectors, and means to provide supplemental heating of the liquid.
    Type: Grant
    Filed: March 12, 1976
    Date of Patent: September 5, 1978
    Assignee: Ecosol, Ltd.
    Inventor: John Lawrence Lebduska