Patents by Inventor Apostolus Katefidis

Apostolus Katefidis 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).

  • Patent number: 5628968
    Abstract: An apparatus for purifying pollutant-containing waste or exhaust air from industrial plants by means of regenerative afterburning includes a heat exchanger in the form of a heat exchanger fill. The material for the heat exchanger fill is a sponge-like foamed ceramic material having open pores. In accordance with another embodiment, the material of the heat exchanger fill may be constituted by ceramic grate plates or grate bodies.
    Type: Grant
    Filed: May 18, 1994
    Date of Patent: May 13, 1997
    Assignee: Eisenmann Maschinenbau KG
    Inventors: Joachim Hug, Apostolus Katefidis