Patents by Inventor Tibor Szekely

Tibor Szekely 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
  • Polyacrylamide adhesive for fixing the sorbent layers of overpressured, one-and multilayer-chromatographic plates and a process for the preparation thereof
    Patent number: 4658000
    Abstract: The invention relates to a new polyacrylamide adhesive suitable for the fixing of fine-particle sorbent layers based on organic and/or inorganic compounds, used in overpressured one- and multilayer chromatographic procedures.The said adhesive is prepared by polymerizing the aqueous solutions of acrylamide and N,N'-methylene-bis-acrylamide in the presence of a catalyst pair at from 21.degree. to 30.degree. C., pulpifying the precipitate thus obtained and repeating the precipitation and the pulpification more times.
    Type: Grant
    Filed: August 16, 1984
    Date of Patent: April 14, 1987
    Assignees: Reanal Finomvegyszergyar, Labor" Muszeripari Muvek
    Inventors: Erno Tyihak, Emil Mincsovics, Sandor Zoltan, Gabor Kemeny, Aniko Mathuny, Tibor Szekely, Sandor Nemeth, Zsuzsanna Antal, Zsuzsanna Fater