Patents by Inventor Kevin Le Van

Kevin Le Van 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).

  • Multidimensional Separations Employing an Array of Electrophoresis Channels
    Publication number: 20100116659
    Abstract: The present invention relates to a method for separating components of a sample. The method includes obtaining a first separation of the sample components along a first dimension wherein the sample components are at least partially resolved, wherein the first separation can be performed in the absence of an electric field applied to the first dimension. An electric field is used to obtain a second separation of the sample components along a second dimension comprising a plurality of substantially isolated volumes. An intensity-time data record is obtained from each of the isolated volumes, the intensity-time data records containing peaks, each peak being indicative of a migration time. The migration time of a first peak is normalized with respect to a migration time of at least a second peak to correct for migration time differences between the isolated volumes.
    Type: Application
    Filed: June 30, 2009
    Publication date: May 13, 2010
    Applicant: Life Technologies Corporation
    Inventors: ChangSheng Liu, Kevin Le Van
  • Multidimensional separations employing an array of electrophoresis channels
    Patent number: 6974527
    Abstract: The present invention relates to a method for separating components of a sample. The method includes obtaining a first separation of the sample components along a first dimension wherein the sample components are at least partially resolved, wherein the first separation can be performed in the absence of an electric field applied to the first dimension. An electric field is used to obtain a second separation of the sample components along a second dimension comprising a plurality of substantially isolated volumes. An intensity-time data record is obtained from each of the isolated volumes, the intensity-time data records containing peaks, each peak being indicative of a migration time. The migration time of a first peak is normalized with respect to a migration time of at least a second peak to correct for migration time differences between the isolated volumes.
    Type: Grant
    Filed: June 6, 2001
    Date of Patent: December 13, 2005
    Assignee: SpectruMedix LLC
    Inventors: ChangSheng Liu, Kevin Le Van
  • Multidimensional separations employing an array of electrophoresis channels
    Publication number: 20050217996
    Abstract: The present invention relates to a method for separating components of a sample. The method includes obtaining a first separation of the sample components along a first dimension wherein the sample components are at least partially resolved, wherein the first separation can be performed in the absence of an electric field applied to the first dimension. An electric field is used to obtain a second separation of the sample components along a second dimension comprising a plurality of substantially isolated volumes. An intensity-time data record is obtained from each of the isolated volumes, the intensity-time data records containing peaks, each peak being indicative of a migration time. The migration time of a first peak is normalized with respect to a migration time of at least a second peak to correct for migration time differences between the isolated volumes.
    Type: Application
    Filed: April 12, 2005
    Publication date: October 6, 2005
    Inventors: ChangSheng Liu, Kevin Le Van
  • Multidimensional separations employing an array of electrophoresis channels
    Publication number: 20020033336
    Abstract: The present invention relates to a method for separating components of a sample. The method includes obtaining a first separation of the sample components along a first dimension wherein the sample components are at least partially resolved, wherein the first separation can be performed in the absence of an electric field applied to the first dimension. An electric field is used to obtain a second separation of the sample components along a second dimension comprising a plurality of substantially isolated volumes. An intensity-time data record is obtained from each of the isolated volumes, the intensity-time data records containing peaks, each peak being indicative of a migration time. The migration time of a first peak is normalized with respect to a migration time of at least a second peak to correct for migration time differences between the isolated volumes.
    Type: Application
    Filed: June 6, 2001
    Publication date: March 21, 2002
    Inventors: ChangSheng Liu, Kevin Le Van