Patents by Inventor John A. Martstiller

John A. Martstiller 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 resistance heater
    Patent number: 4912306
    Abstract: An electrical heater including a semi-conductor pattern (e.g., colloidal graphite ink) printed on a substrate. A conductive ink (e.g., a silver ink) is deposited on the semi-conductor pattern. The conductive ink migrates into the semi-conductor material, provides a superior electrical contact between the conductor (e.g., the silver ink) and the underlying semi-conductor material (e.g., the semi-conductor graphite ink), and essentially eliminates interface resistance. In some embodiments, the semi-conductor pattern is printed on one side of a woven cloth substrate and the conductive ink is printed on the other side.
    Type: Grant
    Filed: March 13, 1989
    Date of Patent: March 27, 1990
    Inventors: Frederick G. J. Grise, John A. Martstiller, Paul H. Bodensiek
  • Electric resistance heater
    Patent number: 4849255
    Abstract: An electrical heater including a semi-conductor pattern (e.g., colloidal graphite ink) printed on a substrate. A conductive ink (e.g., a silver ink) is dposited on the semi-conductor pattern. The conductive ink migrates into the semi-conductor material, provides a superior electrical contact between the conductor (e.g., the silver ink) and the underlying semi-conductor material (e.g., the semi-conductor graphite ink), and essentially eliminates interface resistance. In some embodiments, the semi-conductor pattern is printed on one side of a woven cloth substrate and the conductive ink is printed on the other side.
    Type: Grant
    Filed: July 14, 1987
    Date of Patent: July 18, 1989
    Inventors: Frederick G. J. Grise, John A. Martstiller, Paul H. Bodensiek