Patents by Inventor Willi Jost

Willi Jost 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).

  • Coded thin layer chromatography support
    Patent number: 5773576
    Abstract: Support materials for thin-layer chromatography characterized by a marker code applied using laser light.
    Type: Grant
    Filed: May 15, 1996
    Date of Patent: June 30, 1998
    Assignee: Merck Patent Gesellschaft mit Beschrankter Haftung
    Inventors: Andrea Junker-Buchheit, Heinz-Emil Hauck, Willi Jost
  • Adsorbents for chromatography and adsorption processes
    Patent number: 5098576
    Abstract: In adsorption and chromatography proceseses for the separation of at least one substance from a mixture of substances, silicon carbide is used as the adsorbent and as a support material in such processes.
    Type: Grant
    Filed: May 9, 1991
    Date of Patent: March 24, 1992
    Assignee: Merck Patent Gesellschaft mit beschrankter Haftung
    Inventors: Karin Cabrera, Willi Jost, Karl-Friedrich Krebs
  • Separation materials for thin layer chromatography
    Patent number: 4793921
    Abstract: New separation materials for thin layer chromatography are based on carrier materials coated with an adsorbent silica gel layer which has been surface-modified by a silanizing agent after the coating step. The degree of covering of the modifying reagent can be adjusted in a defined an controllable manner, e.g., from 0.15 to 0.8 .mu.mol/m.sup.2 in the case of reversed phase materials and 1.2 to 2.5 .mu.mol/m.sup.2 in the case of hydrophilic materials. A process for the preparation of these separation materials is also provided.
    Type: Grant
    Filed: December 9, 1987
    Date of Patent: December 27, 1988
    Assignee: Merck Patent Gesellschaft Mit Beschrankter Haftung
    Inventors: Heinz E. Hauck, Willi Jost
  • Separation materials for thin layer chromatography
    Patent number: 4741830
    Abstract: New separation materials for thin layer chromatography are based on carrier materials coated with an adsorbent silica gel layer which has been surface-modified by a silanizing agent after the coating step. The degree of covering of the modifying reagent can be adjusted in a defined and controllable manner, e.g., from 0.15 to 0.8 .mu.mol/m.sup.2 in the case of reversed phase materials and 1.2 to 2.5 .mu.mil/m.sup.2 in the case of hydrophilic materials. A process for the preparation of these separation materials is also provided.
    Type: Grant
    Filed: February 11, 1987
    Date of Patent: May 3, 1988
    Assignee: Merck Patent Gesellschaft mit beschrankter Haftung
    Inventors: Heinz E. Hauck, Willi Jost