Patents by Inventor David Keith JOHNSON

David Keith JOHNSON 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: 10684232
    Abstract: Methods and apparatus for evaluating the quality of an environment or process by measuring light emitted from a bioluminescent sample containing ATP, ADP, or alkaline phosphatase. The apparatus comprises a sample collection and analysis system used to collect a sample, mix reagents, react the sample, and collect it in a measurement chamber. The system includes an instrument having a photon detection assembly for use with the sample testing device and one or more probe assemblies that optically cooperate with the instrument. The instrument includes a dark chamber with a reflective interior surface which may be concave or preferably spherical, and a photon detection sensor such as a multi-pixel photon counter sensor. A substantially transparent portion of the probe assembly, and liquid contained therein, focus bioluminescence toward the photon detection sensor.
    Type: Grant
    Filed: August 4, 2016
    Date of Patent: June 16, 2020
    Assignee: BIOCONTROL SYSTEMS, INC.
    Inventors: Marc Warren Gordon, Jon Keith Perrin, Alexander Michael Diener, David Oscar Iverson, Kyle Stuart Johnson, Garet Glenn Nenninger, John Russell Murkowski, Kristin Marie Will, Chad Austin Brinckerhoff, Phillip T. Feldsine, Tim Allen Kelly
  • Patent number: 10633949
    Abstract: A diverter assembly includes a tubing segment and one or more sleeve members disposed therein. The tubing segment includes apertures that are selectively alignable with apertures of an inner sleeve disposed within the tubing segment. The tubing segment includes a series of stops (e.g., shear pins) to arrest movement of the first sleeve within the bore of the tubing segment. A first one or more ball seats are included in the first sleeve such that deployment of a first ball and pressurization of the well above the first ball causes a first set of shear pins to fail, thereby allowing the first sleeve to slide downhole to cause apertures of the sleeve to align with apertures of the tubing segment, thereby causing fluid to flow to an annulus between the tubing segment and wellbore wall.
    Type: Grant
    Filed: July 7, 2016
    Date of Patent: April 28, 2020
    Assignee: Halliburton Energy Services, Inc.
    Inventors: David Jon Tilley, Phillip Michael Morgan, James Todd Johnson, Michael Rick Johnson, Nicholas Lee Strohla, Matthew Ryan Gray, Daniel Keith Moeller
  • Publication number: 20190284899
    Abstract: A diverter assembly includes a tubing segment and one or more sleeve members disposed therein. The tubing segment includes apertures that are selectively alignable with apertures of an inner sleeve disposed within the tubing segment. The tubing segment includes a series of stops (e.g., shear pins) to arrest movement of the first sleeve within the bore of the tubing segment. A first one or more ball seats are included in the first sleeve such that deployment of a first ball and pressurization of the well above the first ball causes a first set of shear pins to fail, thereby allowing the first sleeve to slide downhole to cause apertures of the sleeve to align with apertures of the tubing segment, thereby causing fluid to flow to an annulus between the tubing segment and wellbore wall.
    Type: Application
    Filed: July 7, 2016
    Publication date: September 19, 2019
    Inventors: David Jon Tilley, Phillip Michael MORGAN, James Todd JOHNSON, Michael Rick JOHNSON, Nicholas Lee Lee STROHLA, Matthew Ryan GRAY, Daniel Keith MOELLER
  • Publication number: 20190266537
    Abstract: Systems, methods and computer-readable media for incident queue assignment and prioritization are disclosed. An incident handling system may receive a request for a next highest priority incident. An incident requiring resolution may be identified. The incident may be associated with an incident queue based at least in part on a queue assignment rule. The incident queue may comprise one or more incidents. The incident queue may be processed based at least in part on a prioritization rule to identify, from the one or more incidents associated with the incident queue, the next highest priority incident. The incident handling system may transmit the next highest priority incident associated with the incident queue.
    Type: Application
    Filed: May 15, 2019
    Publication date: August 29, 2019
    Inventors: Michael Lee Kleehammer, Michael Fisher Loyd, David Keith Johnson
  • Patent number: 10346779
    Abstract: Systems, methods and computer-readable media for incident queue assignment and prioritization are disclosed. An incident handling system may receive a request for a next highest priority incident. An incident requiring resolution may be identified. The incident may be associated with an incident queue based at least in part on a queue assignment rule. The incident queue may comprise one or more incidents. The incident queue may be processed based at least in part on a prioritization rule to identify, from the one or more incidents associated with the incident queue, the next highest priority incident. The incident handling system may transmit the next highest priority incident associated with the incident queue.
    Type: Grant
    Filed: March 5, 2015
    Date of Patent: July 9, 2019
    Assignee: Fiserv, Inc.
    Inventors: Michael Lee Kleehammer, Michael Fisher Loyd, David Keith Johnson
  • Patent number: 9086488
    Abstract: One of first and second beams (28) of corresponding first and second light (13) are projected into an atmosphere (20) and at least one physical property of the atmosphere (20) is detected from the interference pattern (47) generated from the resulting scattered light (30). The first and second beams (20) are selected responsive to either a detected signal-to-noise ratio (SNR) or a detected aerosol-to-molecular ratio (AMR). The wavelength (740) of the first light (13) provides for either molecular or aerosol scattering, whereas the wavelength (738) of the second light (13) provides for primarily only aerosol scattering. In accordance with a second aspect, scattered light (30) from one or more beams (28) of substantially monochromatic light (13) projected into the atmosphere (20) and received from a plurality of interaction regions (17) or measurement volumes (52) provides for determining wind power (P*) within a region of the atmosphere (20).
    Type: Grant
    Filed: February 2, 2011
    Date of Patent: July 21, 2015
    Assignee: Michigan Aerospace Corporation
    Inventors: Peter Tchoryk, Jr., David Michael Zuk, David Keith Johnson, Charles J. Richey, Parviz Tayebati
  • Publication number: 20150178657
    Abstract: Systems, methods and computer-readable media for incident queue assignment and prioritization are disclosed. An incident handling system may receive a request for a next highest priority incident. An incident requiring resolution may be identified. The incident may be associated with an incident queue based at least in part on a queue assignment rule. The incident queue may comprise one or more incidents. The incident queue may be processed based at least in part on a prioritization rule to identify, from the one or more incidents associated with the incident queue, the next highest priority incident. The incident handling system may transmit the next highest priority incident associated with the incident queue.
    Type: Application
    Filed: March 5, 2015
    Publication date: June 25, 2015
    Inventors: Michael Lee Kleehammer, Michael Fisher Loyd, David Keith Johnson
  • Patent number: 8866322
    Abstract: A magnitude and direction, or a measure responsive thereto, of a velocity (V) of a first portion (17) of an atmosphere (20) are determined from at least first and second portions of scattered light (30) generated along a common beam of light (28) within the first portion (17) of the atmosphere (20) and received along linearly independent directions at locations that are relatively remote with respect to one another, at least one of which is relatively remote from a source (11) of the beam of light (28).
    Type: Grant
    Filed: July 29, 2010
    Date of Patent: October 21, 2014
    Assignee: Michigan Aerospace Corporation
    Inventors: Peter Tchoryk, Jr., Charles J. Richey, Paul Byron Hays, David Keith Johnson, David Michael Zuk
  • Publication number: 20140278641
    Abstract: Systems, methods and computer-readable media for incident queue assignment and prioritization are disclosed. An incident handling system may receive a request for a next highest priority incident. An incident requiring resolution may be identified. The incident may be associated with an incident queue based at least in part on a queue assignment rule. The incident queue may comprise one or more incidents. The incident queue may be processed based at least in part on a prioritization rule to identify, from the one or more incidents associated with the incident queue, the next highest priority incident. The incident handling system may transmit the next highest priority incident associated with the incident queue.
    Type: Application
    Filed: March 15, 2013
    Publication date: September 18, 2014
    Applicant: FISERV, INC.
    Inventors: Michael Lee Kleehammer, Michael Fisher Loyd, David Keith Johnson
  • Patent number: 8797550
    Abstract: A fringe pattern from an interferometer is imaged onto a digital micromirror device containing an array of micromirrors in an associated pattern of pixel mirror rotational states that provide for sampling the circular fringe pattern in cooperation with one or more associated photodetectors, so as to provide for generate a corresponding set of associated complementary signals. A plurality of different sets of associated complementary signals generated for a corresponding plurality of mutually independent associated patterns of pixel mirror rotational states are used to determine at least one metric associated with the circular fringe pattern.
    Type: Grant
    Filed: October 19, 2011
    Date of Patent: August 5, 2014
    Assignee: Michigan Aerospace Corporation
    Inventors: Paul Byron Hays, David Keith Johnson, David Michael Zuk, Scott Kevin Lindemann
  • Publication number: 20130314694
    Abstract: One of first and second beams (28) of corresponding first and second light (13) are projected into an atmosphere (20) and at least one physical property of the atmosphere (20) is detected from the interference pattern (47) generated from the resulting scattered light (30). The first and second beams (20) are selected responsive to either a detected signal-to-noise ratio (SNR) or a detected aerosol-to-molecular ratio (AMR). The wavelength (740) of the first light (13) provides for either molecular or aerosol scattering, whereas the wavelength (738) of the second light (13) provides for primarily only aerosol scattering. In accordance with a second aspect, scattered light (30) from one or more beams (28) of substantially monochromatic light (13) projected into the atmosphere (20) and received from a plurality of interaction regions (17) or measurement volumes (52) provides for determining wind power (P*) within a region of the atmosphere (20).
    Type: Application
    Filed: February 2, 2011
    Publication date: November 28, 2013
    Applicant: MICHIGAN AEROSPACE CORPORATION
    Inventors: Peter Tchoryk, JR., David Michael Zuk, David Keith Johnson, Charles J. Richey, Parviz Tayebati
  • Patent number: 8427649
    Abstract: Light scattered by a portion of a fluid medium illuminated by a beam of substantially monochromatic light is received within a field-of-view nominally along an axis oriented in a different direction relative to the beam and processed by an interferometer to generate a corresponding fringe pattern that is detected and processed to generate at least one measure of the fluid medium at a plurality of different ranges.
    Type: Grant
    Filed: May 15, 2010
    Date of Patent: April 23, 2013
    Assignee: Michigan Aerospace Corporation
    Inventors: Paul Byron Hays, David Keith Johnson, David Michael Zuk
  • Publication number: 20120169053
    Abstract: A magnitude and direction, or a measure responsive thereto, of a velocity (V) of a first portion (17) of an atmosphere (20) are determined from at least first and second portions of scattered light (30) generated along a common beam of light (28) within the first portion (17) of the atmosphere (20) and received along linearly independent directions at locations that are relatively remote with respect to one another, at least one of which is relatively remote from a source (11) of the beam of light (28).
    Type: Application
    Filed: July 29, 2010
    Publication date: July 5, 2012
    Applicant: Michigan Aerospace Corporation
    Inventors: Peter Tchoryk, JR., Charles J. Richey, Paul Byron Hays, David Keith Johnson, David Michael Zuk
  • Publication number: 20120050750
    Abstract: A fringe pattern from an interferometer is imaged onto a digital micromirror device containing an array of micromirrors in an associated pattern of pixel mirror rotational states that provide for sampling the circular fringe pattern in cooperation with one or more associated photodetectors, so as to provide for generate a corresponding set of associated complementary signals. A plurality of different sets of associated complementary signals generated for a corresponding plurality of mutually independent associated patterns of pixel mirror rotational states are used to determine at least one metric associated with the circular fringe pattern.
    Type: Application
    Filed: October 19, 2011
    Publication date: March 1, 2012
    Applicant: MICHIGAN AEROSPACE CORPORATION
    Inventors: Paul Byron HAYS, David Keith JOHNSON, David Michael ZUK, Scott Kevin LINDEMANN
  • Publication number: 20110164783
    Abstract: Light scattered by a portion of a fluid medium illuminated by a beam of substantially monochromatic light is received within a field-of-view nominally along an axis oriented in a different direction relative to the beam and processed by an interferometer to generate a corresponding fringe pattern that is detected and processed to generate at least one measure of the fluid medium at a plurality of different ranges.
    Type: Application
    Filed: May 15, 2010
    Publication date: July 7, 2011
    Applicant: MICHIGAN AEROSPACE CORPORATION
    Inventors: Paul Byron HAYS, David Keith JOHNSON, David Michael ZUK