Patents by Inventor Michelle M. Bushey

Michelle M. Bushey 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 high-performance liquid chromatography/capillary electrophoresis
    Patent number: 5240577
    Abstract: Disclosed is a two-dimensional separation system, comprising a liquid chromatography column having an outlet port; a capillary electrophoresis capillary having an inlet end and an outlet end; buffer supply means for supplying buffer to the capillary; and valve means connecting the capillary inlet end to the chromatography column outlet port and to the buffer supply means, the valve means switchable between a first configuration providing fluid to the capillary inlet end from the buffer supply means and a second configuration providing fluid to the capillary inlet end from the chromatography column. Methods of carrying out two-dimensional separations employing the system are also disclosed.
    Type: Grant
    Filed: June 1, 1992
    Date of Patent: August 31, 1993
    Assignee: University of North Carolina at Chapel Hill
    Inventors: James W. Jorgenson, Michelle M. Bushey
  • Two-dimensional high-performance liquid chromatography/capillary electrophoresis
    Patent number: 5131998
    Abstract: Disclosed is a two-dimensional separation system, comprising a liquid chromatography column having an outlet port; a capillary electrophoresis capillary having an inlet end and an outlet end; buffer supply means for supplying buffer to the capillary; and valve means connecting the capillary inlet end to the chromatography column outlet port and to the buffer supply means, the valve means switchable between a first configuration providing fluid to the capillary inlet end from the buffer supply means and a second configuration providing fluid to the capillary inlet end from the chromatography column. Methods of carrying out two-dimensional separations employing the system are also disclosed.
    Type: Grant
    Filed: November 13, 1990
    Date of Patent: July 21, 1992
    Assignee: The University of North Carolina at Chapel Hill
    Inventors: James W. Jorgenson, Michelle M. Bushey