Patents by Inventor Janusz Sobczak

Janusz Sobczak 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).

  • Installation for conducting a synthesis reaction of urea
    Patent number: 4098579
    Abstract: Apparatus for synthesis of urea comprising a reaction vessel divided into a number of adjacent reaction zones by means of overflow-preventing plates with moving elements that are non-return valves.
    Type: Grant
    Filed: March 3, 1977
    Date of Patent: July 4, 1978
    Assignee: Instytut Nawozow Sztucznych Zjednoczenie "Petrochemia"
    Inventors: Janusz Starzycki, Jadwiga Starzycka, Janusz Sobczak, Stanislaw Golembiowski, Ernest Pieczora, Stanislaw Kolanek, Jerzy Simonides, Jozef Jendrzej