Patents by Inventor Michael E. Mazzei

Michael E. Mazzei 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).

  • Two dimensional two phase thin layer chromatography plate and method
    Patent number: 4313906
    Abstract: A thin layer chromatography plate is disclosed for two-dimensional chromatography of a sample, in which the plate has a first surface portion including a first composition suitable to perform thin layer partition chromatography in a first direction on the plate and a second surface portion including a second composition suitable to perform thin layer chromatography in a second direction on the plate, wherein the second composition is selected from the group consisting of (1) a composition, different from the first composition, suitable to perform thin layer partition chromatography and (2) a composition suitable to perform adsorptive thin layer partition chromatography. A method of using such a plate is also disclosed.
    Type: Grant
    Filed: August 17, 1979
    Date of Patent: February 2, 1982
    Assignee: Whatman, Inc.
    Inventors: Thomas J. Filipi, Michael E. Mazzei