Patents by Inventor Endre Papp

Endre Papp 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).

  • Process for the separation of solid phase from liquid substance, particularly for waste water purification
    Patent number: 5071566
    Abstract: A method is provided for removing a solid phase from a liquid substance, which is kept in a continuous turbulent flow. The method is characterized by adding simultaneously at consecutive places in the flow direction of the liquid substance, cement, iron (III)-chloride-sulfate and an anion polyelectrolyte. Cement is added at a first place, iron (III)-chloride-sulfate at a second place and anion polyelectrolyte at a third place.
    Type: Grant
    Filed: September 1, 1989
    Date of Patent: December 10, 1991
    Assignee: Innoterv Ipari Fovallalkozo Kisszovetkezet
    Inventors: Endre Papp, Istvan Papp, Lajos Szabo, Istvan Apro, Gyula Czepek, Ferenc Torocsik, Bela Konkoly, Pal Karcagi, Janos Takacs, Tamas Foldi