Patents by Inventor Chantal Turmel

Chantal Turmel 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).

  • Processes for the preparation and separation of macromolecules
    Patent number: 5348636
    Abstract: A process for the electrophoretic separation of charged macromolecules includes applying to the macromolecules a periodic sequence of pulses. Each period comprises a multiplicity of electric field pulses of negative and positive polarities. The negative polarity pulses are applied for a longer total time duration than the positive polarity pulses within each period. The average intensity of the negative polarity pulses is less than the average intensity of the positive polarity pulses.
    Type: Grant
    Filed: November 8, 1993
    Date of Patent: September 20, 1994
    Assignee: Xerox Corporation
    Inventors: Gary Slater, Jaan Noolandi, Chantal Turmel
  • Processes for the preparation and separation of macromolecules
    Patent number: 5286434
    Abstract: A process for the electrophoretic separation of charged macromolecules includes applying to the macromolecules a periodic sequence of pulses. Each period comprises a multiplicity of electric field pulses of negative and positive polarities. The negative polarity pulses are applied for a longer total time duration than the positive polarity pulses within each period. The average intensity of the negative polarity pulses is less than the average intensity of the positive polarity pulses.
    Type: Grant
    Filed: October 29, 1991
    Date of Patent: February 15, 1994
    Assignee: Xerox Corporation
    Inventors: Gary Slater, Jaan Noolandi, Chantal Turmel