Patents by Inventor Abram Jan Boertjens

Abram Jan Boertjens 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).

  • Heating element for a water-bed
    Patent number: 6150633
    Abstract: A heating element for heating a water-bed comprising a metal support plate having a high coefficient of thermal conductivity, a heat source attached to the metal support plate and having an electrically resistive conductor which emits heat when electricity passes through it, and an electrical insulator for insulating the heat source from the metal plate.
    Type: Grant
    Filed: August 6, 1999
    Date of Patent: November 21, 2000
    Assignee: Faber Electronics B.V.
    Inventor: Abram Jan Boertjens