Patents by Inventor Jerzy Podlejski

Jerzy Podlejski 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: 4136206
    Abstract: A method for obtaining a smoking agent from smoke condensate obtained from the destructive distillation of cellulose or lignin material comprising subjecting the smoke condensate to extraction by an aqueous solution of a mineral acid to remove organic bases or with a mineral acid which does not decompose at temperatures up to 250.degree. C, in order to bind the bases. The product is then subjected to distillation under reduced pressure in an atmosphere of an inert gas with the addition of metallic dusts and in a second stage of distillation with the addition of a polyhydric alcohol. The obtained smoking agent from the distillation can be subjected to selective absorption of ballast or undesirable substances by passage through suitable adsorbents. In a modification the two stage distillation preceeds the extraction and in a further modification the active substances are first extracted with an organic solvent and then subjected to distillation under reduced pressure.
    Type: Grant
    Filed: March 28, 1977
    Date of Patent: January 23, 1979
    Assignee: Politechnika Lodzka, Instytut Brzemyuslu Miesnego
    Inventors: Janusz Kulesza, Kazimierz Miler, Jerzy Podlejski, Jozef Gora, Teresa Czajkowska, Zbigniew Kozlowski, Jadwiga Kolska, Jolanta Stolowska, Zygmunt Rutkowski