Patents by Inventor Christopher David Bevan

Christopher David Bevan 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).

  • MICROFLUIDIC METHODS AND APPARATUSES FOR FLUID MIXING AND VALVING
    Publication number: 20090145485
    Abstract: According to one embodiment, an apparatus and method for delivering one or more fluids to a microfluidic channel is provided. A microfluidic channel is provided in communication with a first conduit for delivering fluids to the microfluidic channel. Further, the apparatus and method can include a first fluid freeze valve connected to the first conduit and operable to reduce the temperature of the first conduit for freezing fluid in the first conduit such that fluid is prevented from advancing through the first conduit.
    Type: Application
    Filed: August 10, 2006
    Publication date: June 11, 2009
    Applicant: EKSIGENT TECHNOLOGIES, LLC
    Inventors: Gregory Fenton Smith, Dawn M. Schmidt, Sara Thrall, David G. Tew, Gregory A. Votaw, Hugh C. Crenshaw, Michael G. Pollack, Christopher David Bevan, Kelly Junge, Mehul Patel
  • Analytical method and apparatus therefor involving continuous titration
    Patent number: 6913930
    Abstract: The present invention relates to an improved analytical method and apparatus therefor, in particular to a method and apparatus for continuous titration in which at least one parameter of at least one compound in a test mixture may be monitored as the composition of the mixture is continuously varied. The method comprises the steps of continuously mixing at least two component fluid streams to form a test mixture stream and passing the test mixture stream through a spectrophotometric detection zone, with the volume to volume ratio of at least two of the component streams forming the test mixture stream continuously and linearly varied with time by alteration of the relative proportions of the component streams forming the test mixture, while the total volume of the test mixture stream remains constant.
    Type: Grant
    Filed: August 5, 2003
    Date of Patent: July 5, 2005
    Assignee: Glaxo Wellcome Inc.
    Inventors: Christopher David Bevan, Alan Peter Hill, Derek Peter Reynolds
  • Analytical method and apparatus therefor
    Publication number: 20040023405
    Abstract: The present invention relates to an improved analytical method and apparatus therefor, in particular to a method and apparatus for continuous titration in which at least one parameter of at least one compound in a text mixture may be monitored as the composition of the mixture is continuously varied.
    Type: Application
    Filed: August 5, 2003
    Publication date: February 5, 2004
    Applicant: Glaxo Wellcome Inc.
    Inventors: Christopher David Bevan, Alan Peter Hill, Derek Peter Reynolds
  • Liquid flow management means
    Patent number: 6342184
    Abstract: The present invention relates to a method and apparatus for managing liquid flow through small bore tubing (1,2,3) or channels (13) by freezing the liquid or thawing the frozen liquid in a small segment of the tube or channel.
    Type: Grant
    Filed: July 26, 1999
    Date of Patent: January 29, 2002
    Assignee: Glaxo Group Limited
    Inventors: Christopher David Bevan, Ian Martin Mutton
  • Liquid flow management means
    Patent number: 6159744
    Abstract: The present invention relates to a method and apparatus for managing liquid flow through small bore tubing (1,2,3) or channels (13) by freezing the liquid or thawing the frozen liquid in a small segment of the tube or channel.
    Type: Grant
    Filed: July 21, 1998
    Date of Patent: December 12, 2000
    Assignee: Glaxo Group Limited
    Inventors: Christopher David Bevan, Ian Martin Mutton
  • Liquid flow management means
    Patent number: 5795788
    Abstract: The present invention relates to a method and apparatus for managing liquid flow through small bore tubing (1,2,3) or channels (13) by freezing the liquid or thawing the frozen liquid in a small segment of the tube or channel.
    Type: Grant
    Filed: November 21, 1995
    Date of Patent: August 18, 1998
    Assignee: Glaxo Group Limited
    Inventors: Christopher David Bevan, Ian Martin Mutton