TREA

David J. Rakestraw

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  • Fremont, CA, US
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Patents Grantslast 30 patents

  • Information Patent Grant

    Flow rate control
    • Patent number 8,673,144
    • Issue date Mar 18, 2014
    • DH Technologies Development Pte. Ltd.
    • David W. Neyer
    • G01 - MEASURING TESTING
  • Information Patent Grant

    Flow rate control
    • Patent number 7,645,388
    • Issue date Jan 12, 2010
    • Eksigent Technologies, LLC
    • David W. Neyer
    • G01 - MEASURING TESTING
  • Information Patent Grant

    Variable potential electrokinetic devices
    • Patent number 7,399,398
    • Issue date Jul 15, 2008
    • Eksigent Technologies, LLC
    • David J. Rakestraw
    • F04 - POSITIVE DISPLACEMENT MACHINES FOR LIQUIDS PUMPS FOR LIQUIDS OR ELASTIC...
  • Information Patent Grant

    Particulate processing system
    • Patent number 7,220,592
    • Issue date May 22, 2007
    • Eksigent Technologies, LLC
    • David J. Rakestraw
    • G01 - MEASURING TESTING
  • Information Patent Grant

    Processing of particles
    • Patent number 7,175,810
    • Issue date Feb 13, 2007
    • Eksigent Technologies
    • Don W. Arnold
    • G01 - MEASURING TESTING
  • Information Patent Grant

    Variable flow rate injector
    • Patent number 6,962,658
    • Issue date Nov 8, 2005
    • Eksigent Technologies, LLC
    • David W. Neyer
    • G01 - MEASURING TESTING
  • Information Patent Grant

    Particle-based check valve
    • Patent number 6,802,331
    • Issue date Oct 12, 2004
    • Eksigent Technologies LLC
    • Don W. Arnold
    • F16 - ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINT...
  • Information Patent Grant

    Variable potential electrokinetic device
    • Patent number 6,719,535
    • Issue date Apr 13, 2004
    • Eksigent Technologies, LLC
    • David J. Rakestraw
    • F04 - POSITIVE DISPLACEMENT MACHINES FOR LIQUIDS PUMPS FOR LIQUIDS OR ELASTIC...
  • Information Patent Grant

    Electrokinetic high pressure hydraulic system
    • Patent number 6,572,749
    • Issue date Jun 3, 2003
    • Sandia Corporation
    • Phillip H. Paul
    • F04 - POSITIVE DISPLACEMENT MACHINES FOR LIQUIDS PUMPS FOR LIQUIDS OR ELASTIC...
  • Information Patent Grant

    Device to improve detection in electro-chromatography
    • Patent number 6,344,145
    • Issue date Feb 5, 2002
    • Sandia Corporation
    • Michael G. Garguilo
    • B01 - PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
  • Information Patent Grant

    Electrokinetic high pressure hydraulic system
    • Patent number 6,277,257
    • Issue date Aug 21, 2001
    • Sandia Corporation
    • Phillip H. Paul
    • F04 - POSITIVE DISPLACEMENT MACHINES FOR LIQUIDS PUMPS FOR LIQUIDS OR ELASTIC...
  • Information Patent Grant

    Electrokinetic micro-fluid mixer
    • Patent number 6,086,243
    • Issue date Jul 11, 2000
    • Sandia Corporation
    • Phillip H. Paul
    • B01 - PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
  • Information Patent Grant

    Device to improve detection in electro-chromatography
    • Patent number 6,068,767
    • Issue date May 30, 2000
    • Sandia Corporation
    • Michael G. Garguilo
    • B01 - PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
  • Information Patent Grant

    Electrokinetic high pressure hydraulic system
    • Patent number 6,019,882
    • Issue date Feb 1, 2000
    • Sandia Corporation
    • Phillip H. Paul
    • F04 - POSITIVE DISPLACEMENT MACHINES FOR LIQUIDS PUMPS FOR LIQUIDS OR ELASTIC...
  • Information Patent Grant

    Electokinetic high pressure hydraulic system
    • Patent number 6,013,164
    • Issue date Jan 11, 2000
    • Sandia Corporation
    • Phillip H. Paul
    • F04 - POSITIVE DISPLACEMENT MACHINES FOR LIQUIDS PUMPS FOR LIQUIDS OR ELASTIC...
  • Information Patent Grant

    Electro-osmotically driven liquid delivery method and apparatus
    • Patent number 5,942,093
    • Issue date Aug 24, 1999
    • Sandia Corporation
    • David J. Rakestraw
    • G01 - MEASURING TESTING
  • Information Patent Grant

    Multicapillary fluorescent detection system
    • Patent number 5,675,155
    • Issue date Oct 7, 1997
    • Beckman Instruments, Inc.
    • Stephen L. Pentoney
    • G01 - MEASURING TESTING
  • Information Patent Grant

    Automated optical alignment using a galvometric scanner
    • Patent number 5,545,901
    • Issue date Aug 13, 1996
    • Beckman Instruments, Inc.
    • Stephen L. Pentoney
    • G01 - MEASURING TESTING

Patents Applicationslast 30 patents

  • Information Patent Application

    Flow Rate Control
    • Publication number 20100086443
    • Publication date Apr 8, 2010
    • Eksigent Technologies, Inc.
    • David W. Neyer
    • G01 - MEASURING TESTING
  • Information Patent Application

    VARIABLE FLOW RATE SYSTEM FOR COLUMN CHROMATOGRAPHY
    • Publication number 20070183928
    • Publication date Aug 9, 2007
    • EKSIGENT TECHNOLOGIES, LLC
    • David W. Neyer
    • G01 - MEASURING TESTING
  • Information Patent Application

    Variable flow rate injector
    • Publication number 20050236314
    • Publication date Oct 27, 2005
    • David W. Neyer
    • G01 - MEASURING TESTING
  • Information Patent Application

    Variable flow rate injector
    • Publication number 20040232080
    • Publication date Nov 25, 2004
    • David W. Neyer
    • G01 - MEASURING TESTING
  • Information Patent Application

    Processing of particles
    • Publication number 20040235181
    • Publication date Nov 25, 2004
    • Don W. Arnold
    • G01 - MEASURING TESTING
  • Information Patent Application

    Variable potential electrokinetic devices
    • Publication number 20040163959
    • Publication date Aug 26, 2004
    • David J. Rakestraw
    • F04 - POSITIVE DISPLACEMENT MACHINES FOR LIQUIDS PUMPS FOR LIQUIDS OR ELASTIC...
  • Information Patent Application

    Particulate processing system
    • Publication number 20040096977
    • Publication date May 20, 2004
    • David J. Rakestraw
    • G01 - MEASURING TESTING
  • Information Patent Application

    Particle-based check valve
    • Publication number 20030183278
    • Publication date Oct 2, 2003
    • ESKIGENT TECHNOLOGIES, INC.
    • Don W. Arnold
    • B01 - PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
  • Information Patent Application

    Variable potential electrokinetic device
    • Publication number 20030143081
    • Publication date Jul 31, 2003
    • Eksigent Technologies LLC, a California Corporation
    • David J. Rakestraw
    • F04 - POSITIVE DISPLACEMENT MACHINES FOR LIQUIDS PUMPS FOR LIQUIDS OR ELASTIC...