Patents by Inventor Laszlo Peterfi

Laszlo Peterfi 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).

  • Chromatographic sheet and/or a system of chromatographic sheets for overpressured multilayer chromatography
    Patent number: 4671871
    Abstract: The present invention relates to a chromatographic sheet and/or a system of chromatographic sheets for overpressured multilayer chromatography.One or more chromatographic sheets with sorbent layer are optionally sealed at their edges preferably by impregnation or coating with a polymer film and holed at the solvent inlet in adequate size and shape and they are optionally included in a system in single or multiple layers with or without a conventional chromatographic sheet sealed at its edges.
    Type: Grant
    Filed: August 19, 1986
    Date of Patent: June 9, 1987
    Assignee: Labor Muszeripari Muvek
    Inventors: Tibor Szekely, Erno Tyihak, Emil Mincsovics, Zsuzsa Remenyi nee Korodi, Laszlo Peterfi, Gabor Kemeny, Gabor Takacs