Patents by Inventor Stephen D. Kendig

Stephen D. Kendig 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).

  • Patent number: 7579589
    Abstract: An ultra compact ion mobility based analyzer in a multilayered chip assembly employing various features such as a ion flow generator to propel ions through an ion mobility based filter and, thereby, reduce analyzer size, cost, and power requirements.
    Type: Grant
    Filed: July 26, 2006
    Date of Patent: August 25, 2009
    Assignee: Sionex Corporation
    Inventors: Raanan A. Miller, Stephen Coy, Stephen D. Kendig, C. James Morris, John A. Wright, Erkinjon G. Nazarov
  • Publication number: 20090189064
    Abstract: An ultra compact ion mobility based analyzer in a multilayered chip assembly employing various features such as a ion flow generator to propel ions through an ion mobility based filter and, thereby, reduce analyzer size, cost, and power requirements.
    Type: Application
    Filed: July 26, 2006
    Publication date: July 30, 2009
    Applicant: SIONEX CORPORATION
    Inventors: Raanan A. Miller, Stephen Coy, Stephen D. Kendig, C. James Morris, John A. Wright, Erkinjon G. Nazarov
  • Publication number: 20080156981
    Abstract: An RF-driven plasma source, including a pair of spaced-apart plasma electrodes, wherein the electrodes act as plates of a capacitor, the gas electrically discharges and creates a plasma of both positive and negative ions, in a clean process that enables efficient sample analysis, with preferred isolated sample photo-ionization, reduced-power operation and also including signal detection with modulated drive electronics.
    Type: Application
    Filed: August 20, 2007
    Publication date: July 3, 2008
    Applicant: SIONEX CORPORATION
    Inventors: Raanan A. Miller, Erkinjon G. Nazarov, Evgeny Krylov, Gary A. Eiceman, John A. Wright, Stephen D. Kendig, C. James Morris, Douglas B. Cameron
  • Patent number: 7279680
    Abstract: An RF-driven plasma source, including a pair of spaced-apart plasma electrodes, wherein the electrodes act as plates of a capacitor, the gas electrically discharges and creates a plasma of both positive and negative ions, in a clean process that enables efficient sample analysis, with preferred isolated sample photo-ionization, reduced-power operation and also including signal detection with modulated drive electronics.
    Type: Grant
    Filed: June 21, 2006
    Date of Patent: October 9, 2007
    Assignee: Sionex Corporation
    Inventors: Raanan A. Miller, Erkinjon G. Nazarov, Evgeny Krylov, Gary A. Eiceman, John A. Wright, Stephen D. Kendig, C. James Morris, Douglas B. Cameron
  • Patent number: 7091481
    Abstract: An RF-driven plasma source, including a pair of spaced-apart plasma electrodes, wherein the electrodes act as plates of a capacitor, the gas electrically discharges and creates a plasma of both positive and negative ions, in a clean process that enables efficient sample analysis, with preferred isolated sample photo-ionization, reduced-power operation and also including signal detection with modulated drive electronics.
    Type: Grant
    Filed: July 19, 2004
    Date of Patent: August 15, 2006
    Assignee: Sionex Corporation
    Inventors: Raanan A. Miller, Erkinjon G. Nazarov, Evgeny Krylov, Gary A. Eiceman, John A. Wright, Stephen D. Kendig, C. James Morris, Douglas B. Cameron
  • Patent number: 6798840
    Abstract: The invention is a communication system having a series of output modules that provide continuous synchronization output signals. Each output module has a driver assembly has a driver output and a backup selector output that is capable of driving a failed next driver assembly. A sensor detects the failure of the driver output and generates a select signal in the failure state. A selector receives the driver output, a backup driver output, the select signal, and a select signal from the next driver assembly. The selector normally selects the driver output, but in response to a failure state from the select signal, isolates the failed driver output. The previous driver assembly transmits a backup selector output to the failed driver assembly to maintain a continuous driver output. The transformers are preferably placed on a separate card to reduce the thermal degradation of nearby electronics. As transformers rarely fail, replacing them when a card fails is wasteful.
    Type: Grant
    Filed: September 30, 1999
    Date of Patent: September 28, 2004
    Assignee: Agilent Technologies, Inc.
    Inventor: Stephen D Kendig
  • Patent number: 6687218
    Abstract: The invention is a communication system having a series of output modules that provide continuous synchronization output signals. Each output module has a driver assembly that has a driver output and a backup selector output that is capable of driving a failed next driver assembly. The driver output and the backup selector output can be different types. A sensor detects the failure of the driver or a backup driver output and generates a select signal in the failure state. A selector receives the driver output, the backup driver output, the select signal, and a select signal from the next driver assembly. The selector normally selects the driver output, but in response to a failure state from the select signal, isolates the failed driver output. The previous driver assembly transmits a backup selector output to the failed driver assembly to maintain a continuous driver output. The transformers are preferably placed on a separate card to reduce the thermal degradation of nearby electronics.
    Type: Grant
    Filed: September 30, 1999
    Date of Patent: February 3, 2004
    Assignee: Agilent Technologies, Inc.
    Inventor: Stephen D Kendig