Patents by Inventor James Landers

James Landers 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: 11986822
    Abstract: Microfluidic devices for analyzing cellular components from biological samples which contain more than one cell type are provided. The microdevice separates cells by type, releases cellular components such as DNA (e.g. by cell lysis) and processes the cellular components (for example, by amplification) to generate products of interest for further analysis. Samples that can be analyzed using the microfluidic devices include forensic samples such as samples from sexual assault victims, and the products of interest include short tandem repeat (STR) amplicons for DNA profiling.
    Type: Grant
    Filed: February 7, 2018
    Date of Patent: May 21, 2024
    Assignees: Virginia Commonwealth University, University of Virginia Patent Foundation
    Inventors: Tracey Dawson Green, James Landers
  • Publication number: 20230072999
    Abstract: A collection device for a biological sample to capture target compounds such as viruses or other pathogens or particles for testing from within the sample and move the captured target compound to a separate chamber for subsequent processing. The collection device can include an openable substance blister including capture particles located in a cup interior. Capture particles can attract and bind the target compounds from the sample. An extraction tube extracts any nucleic acid from the target compound for storage or subsequent amplification and testing to confirm presence of known microorganisms. The extraction tube can comprise a heat-deformable material and can be connected to a microfluidic cartridge for further processing of nucleic acid including, amplification and detection. The microfluidic cartridge includes valves and a plurality of chambers for amplification.
    Type: Application
    Filed: August 5, 2022
    Publication date: March 9, 2023
    Inventors: Orion Scott, Christopher Birch, Daniel Mills, Brian Root, James Landers, Jingyi Li, Matthew Yeung, David Saul, David Vigil, Andrew Guy, Stan Wada, Betina De Gorordo, Steward Dodman, Tom Moran, Stuart Knowles, Fernando Dias, Rick Gardner
  • Patent number: 11465145
    Abstract: A collection device for a biological sample to capture target compounds such as viruses or other pathogens or particles for testing from within the sample and move the captured target compound to a separate chamber for subsequent processing. The collection device can include an openable substance blister including capture particles located in a cup interior. Capture particles can attract and bind the target compounds from the sample. An extraction tube extracts any nucleic acid from the target compound for storage or subsequent amplification and testing to confirm presence of known microorganisms. The extraction tube can comprise a heat-deformable material and can be connected to a microfluidic cartridge for further processing of nucleic acid including, amplification and detection. The microfluidic cartridge includes valves and a plurality of chambers for amplification.
    Type: Grant
    Filed: August 26, 2021
    Date of Patent: October 11, 2022
    Inventors: Orion Scott, Christopher Birch, Daniel Mills, Brian Root, James Landers, Jingyi Li, Matthew Yeung, David Saul, David Vigil, Andrew Guy, Stan Wada, Betina De Gorordo, Steward Dodman, Tom Moran, Stuart Knowles, Fernando Dias, Rick Gardner
  • Patent number: 10563253
    Abstract: A cartridge interface module (CIM), configured to engage with a removable microfluidic cartridge in a nucleic acid analyzer system can include a fluidics component, which is configured to initiate and support a liquid extraction of nucleic acids from a biological sample contained in the removable microfluidic cartridge. The CIM also includes a polymerase chain reaction (PCR) assembly component which can be configured to initiate and support amplification of the extracted nucleic acids. The CIM may also include a high voltage electrodes component that is configured to initiate and support separation of the amplified nucleic acids into nucleic acid fragments in a separation channel of the removable microfluidic cartridge. The CIM also includes a detection optics component that can be configured to collect, detect, and direct label nucleic acid fragments. The CIM is configured to integrate with a microfluidic chip architecture of an inserted removable microfluidic cartridge.
    Type: Grant
    Filed: February 7, 2019
    Date of Patent: February 18, 2020
    Inventors: Michael Edward Egan, Orion N. Scott, James Landers, Douglas J. South, Brian E. Root
  • Patent number: 9988676
    Abstract: A microfluidic cartridge can include at least one nucleic acid analysis portion. Each nucleic acid analysis portion can include a fluidic network being configured for micro-liter volumes or less, a sample input at the beginning of the fluidic network, a plurality of vent ports and fluidic channels in the fluidic network configured to effectuate hydrodynamic movement within the fluidic network, an extraction mixture reservoir in the fluidic network, a mixing chamber in the fluidic network, an amplification chamber in the fluidic network, and a separation channel in the fluidic network. A nucleic acid analyzer can be capable of performing nucleic acid analysis using the microfluidic cartridge. A nucleic acid analysis method can be performed using the microfluidic cartridge.
    Type: Grant
    Filed: June 19, 2015
    Date of Patent: June 5, 2018
    Assignee: LEIDOS INNOVATIONS TECHNOLOGY, INC.
    Inventors: Michael E. Egan, Brian Root, Orion N. Scott, Douglas J. South, Joan M. Bienvenue, Paul Kinnon, James Landers, David Saul, An-Chi Tsuei, Jason Hayes, Matthew Springer, Matthew Solomon, Peter Van Ruijven
  • Patent number: 9732557
    Abstract: A wheel and bracket device that is removably attachable to a ladder. The present invention allows users to more conveniently transport a ladder, ladder tree stand, or other such device, along with objects that may be supported thereon. The present invention is a bracket that is adapted to enclose a rail and a rung of a ladder and be securely affixed to the ladder via a locking mechanism, such as a locking pin. A wheel is rotatably attached to the bracket, thereby allowing users to push or pull the ladder across terrain, rather than being forced to carry the ladder.
    Type: Grant
    Filed: October 15, 2014
    Date of Patent: August 15, 2017
    Inventor: James Landers
  • Patent number: 9692446
    Abstract: An integrated circuit (IC) chip containing a Delta-Sigma (??) filter module for a ?? analog-to-digital converter and a method of providing analog to digital conversion are disclosed. The IC chip includes a ?? filter that is connected to receive a digital data stream created by a ?? modulator, provide a multibit data value when a counter reaches a selected number of received bits, and reset the counter responsive to receiving a synchronization pulse. The IC chip also includes a FIFO buffer connected to store the multibit data value only when a synchronization flag is on and to send an interrupt towards a processing unit only after storing a selected number of multibit data values. The IC chip further includes a synchronization module connected to turn on the synchronization flag responsive to receiving the synchronization pulse and to turn off the synchronization flag responsive to the sending of the interrupt.
    Type: Grant
    Filed: September 30, 2016
    Date of Patent: June 27, 2017
    Assignee: TEXAS INSTRUMENTS INCORPORATED
    Inventor: Robert James Landers
  • Publication number: 20170134039
    Abstract: An integrated circuit (IC) chip containing a Delta-Sigma (??) filter module for a ?? analog-to-digital converter and a method of providing analog to digital conversion are disclosed. The IC chip includes a ?? filter that is connected to receive a digital data stream created by a ?? modulator, provide a multibit data value when a counter reaches a selected number of received bits, and reset the counter responsive to receiving a synchronization pulse. The IC chip also includes a FIFO buffer connected to store the multibit data value only when a synchronization flag is on and to send an interrupt towards a processing unit only after storing a selected number of multibit data values. The IC chip further includes a synchronization module connected to turn on the synchronization flag responsive to receiving the synchronization pulse and to turn off the synchronization flag responsive to the sending of the interrupt.
    Type: Application
    Filed: September 30, 2016
    Publication date: May 11, 2017
    Inventor: Robert James Landers
  • Patent number: 9630182
    Abstract: A microfluidic chip includes one or more reaction chambers to hold fluids for chemical or biochemical reactions, such as PCR. A non-contact heat source heats the reaction chamber and the fluid, such that the heat source does not contact the reaction chamber or the fluid. The heat source can heat the reaction chamber and the fluid separately, where the reaction chamber and the fluid separately absorb heat radiation from the heat source. A temperature sensor acquires a temperature of the reaction chamber and/or the fluid. Control circuitry controls the heat source according to a cycling profile for the reaction in the fluid to cycle the heat source between heating and not heating the reaction chamber and the fluid based on the temperature acquired by the temperature sensor. Cooling can be provided passively or actively.
    Type: Grant
    Filed: December 4, 2013
    Date of Patent: April 25, 2017
    Inventors: Michael Edward Egan, Peter Karl Trost, James Landers, Brian Root, Orion Scott
  • Patent number: 9322054
    Abstract: A microfluidic cartridge can include at least one nucleic acid analysis portion. Each nucleic acid analysis portion can include a fluidic network being configured for micro-liter volumes or less, a sample input at the beginning of the fluidic network, a plurality of vent ports and fluidic channels in the fluidic network configured to effectuate hydrodynamic movement within the fluidic network, an extraction mixture reservoir in the fluidic network, a mixing chamber in the fluidic network, an amplification chamber in the fluidic network, and a separation channel in the fluidic network. A nucleic acid analyzer can be capable of performing nucleic acid analysis using the microfluidic cartridge. A nucleic acid analysis method can be performed using the microfluidic cartridge.
    Type: Grant
    Filed: February 21, 2013
    Date of Patent: April 26, 2016
    Assignees: Lockheed Martin Corporation, MICROLAB DIAGNOSTICS, INC.
    Inventors: Michael Egan, Brian Root, Orion N. Scott, Douglas J. South, Joan Bienvenue, Paul Kinnon, James Landers, David Saul, An-Chi Tsuei, Jason Hayes, Matthew Springer, Matthew Solomon, Peter van Ruijven
  • Publication number: 20150284775
    Abstract: A microfluidic cartridge can include at least one nucleic acid analysis portion. Each nucleic acid analysis portion can include a fluidic network being configured for micro-liter volumes or less, a sample input at the beginning of the fluidic network, a plurality of vent ports and fluidic channels in the fluidic network configured to effectuate hydrodynamic movement within the fluidic network, an extraction mixture reservoir in the fluidic network, a mixing chamber in the fluidic network, an amplification chamber in the fluidic network, and a separation channel in the fluidic network. A nucleic acid analyzer can be capable of performing nucleic acid analysis using the microfluidic cartridge. A nucleic acid analysis method can be performed using the microfluidic cartridge.
    Type: Application
    Filed: June 19, 2015
    Publication date: October 8, 2015
    Applicants: LOCKHEED MARTIN CORPORATION, MICROLAB DIAGNOSTICS, INC.
    Inventors: Michael E. EGAN, Brian Root, Orion N. Scott, Douglas J. South, Joan M. Bienvenue, Paul Kinnon, James Landers, David Saul, An-Chi Tsuei, Jason Hayes, Matthew Springer, Matthew Solomon, Peter Van Ruijven
  • Publication number: 20150270272
    Abstract: A method and circuit in which the drive strength of a FinFET transistor can be selectively modified, and in particular can be selectively reduced, by omitting the LDD extension formation in the source and/or in the drain of the FinFET. One application of this approach is to enable differentiation of the drive strengths of transistors in an integrated circuit by applying the technique to some, but not all, of the transistors in the integrated circuit. In particular in a SRAM cell formed from FinFET transistors the application of the technique to the pass-gate transistors, which leads to a reduction of the drive strength of the pass-gate transistors relative to the drive strength of the pull-up and pull-down transistors, results in improved SRAM cell performance.
    Type: Application
    Filed: June 1, 2015
    Publication date: September 24, 2015
    Inventors: Thomas Merelle, Gerben Doornbos, Robert James Lander, Yi-Tzi Liu
  • Publication number: 20150204139
    Abstract: A wheel and bracket device that is removably attachable to a ladder. The present invention allows users to more conveniently transport a ladder, ladder tree stand, or other such device, along with objects that may be supported thereon. The present invention is a bracket that is adapted to enclose a rail and a rung of a ladder and be securely affixed to the ladder via a locking mechanism, such as a locking pin. A wheel is rotatably attached to the bracket, thereby allowing users to push or pull the ladder across terrain, rather than being forced to carry the ladder.
    Type: Application
    Filed: October 15, 2014
    Publication date: July 23, 2015
    Inventor: James Landers
  • Publication number: 20150151302
    Abstract: A microfluidic chip includes one or more reaction chambers to hold fluids for chemical or biochemical reactions, such as PCR. A non-contact heat source heats the reaction chamber and the fluid, such that the heat source does not contact the reaction chamber or the fluid. The heat source can heat the reaction chamber and the fluid separately, where the reaction chamber and the fluid separately absorb heat radiation from the heat source. A temperature sensor acquires a temperature of the reaction chamber and/or the fluid. Control circuitry controls the heat source according to a cycling profile for the reaction in the fluid to cycle the heat source between heating and not heating the reaction chamber and the fluid based on the temperature acquired by the temperature sensor. Cooling can be provided passively or actively.
    Type: Application
    Filed: December 4, 2013
    Publication date: June 4, 2015
    Applicants: ZyGEM CORPORATION LTD., LOCKHEED MARTIN CORPORATION
    Inventors: Michael Edward EGAN, Peter Karl Trost, James Landers, Brian Root, Orion Scott
  • Patent number: 9048122
    Abstract: A device and method of fabricating the same are disclosed. In an example, a device includes a first fin Field Effect Transistors (finFET) formed on a substrate. The first finFET including a fin formed on the substrate. The device further includes a second finFET formed on the substrate. The first finFET and the second finFET share the fin and wherein the first finFET is without any low density doped (LDD) extension region in the substrate and wherein the second FinFET is associated with a first LDD extension region formed in the substrate such that a drive strength of the second finFET is greater relative to a drive strength of the first finFET.
    Type: Grant
    Filed: July 11, 2014
    Date of Patent: June 2, 2015
    Assignee: Taiwan Semiconductor Manufacturing Company, Ltd.
    Inventors: Thomas Merelle, Gerben Doornbos, Robert James Lander
  • Publication number: 20140319609
    Abstract: A method and circuit in which the drive strength of a FinFET transistor can be selectively modified, and in particular can be selectively reduced, by omitting the LDD extension formation in the source and/or in the drain of the FinFET. One application of this approach is to enable differentiation of the drive strengths of transistors in an integrated circuit by applying the technique to some, but not all, of the transistors in the integrated circuit. In particular in a SRAM cell formed from FinFET transistors the application of the technique to the pass-gate transistors, which leads to a reduction of the drive strength of the pass-gate transistors relative to the drive strength of the pull-up and pull-down transistors, results in improved SRAM cell performance.
    Type: Application
    Filed: July 11, 2014
    Publication date: October 30, 2014
    Inventors: Thomas Merelle, Gerben Doornbos, Robert James Lander
  • Publication number: 20140295441
    Abstract: A cartridge interface module (CIM), configured to engage with a removable microfluidic cartridge in a nucleic acid analyzer system can include a fluidics component, which is configured to initiate and support a liquid extraction of nucleic acids from a biological sample contained in the removable microfluidic cartridge. The CIM also includes a polymerase chain reaction (PCR) assembly component which can be configured to initiate and support amplification of the extracted nucleic acids. The CIM may also include a high voltage electrodes component that is configured to initiate and support separation of the amplified nucleic acids into nucleic acid fragments in a separation channel of the removable microfluidic cartridge. The CIM also includes a detection optics component that can be configured to collect, detect, and direct label nucleic acid fragments. The CIM is configured to integrate with a microfluidic chip architecture of an inserted removable microfluidic cartridge.
    Type: Application
    Filed: March 27, 2014
    Publication date: October 2, 2014
    Applicants: ZYGEM CORPORATION LTD., LOCKHEED MARTIN CORPORATION
    Inventors: Michael Edward EGAN, Orion N. Scott, James Landers, Douglas J. South, Brian E. Root
  • Patent number: 7839304
    Abstract: An onboard system for a rotary wing aircraft detects a limit cycle oscillation in the tail mast and provides a timely indication of the limit cycle oscillation to an aircrew before serious damage to the airframe is likely to occur.
    Type: Grant
    Filed: May 1, 2008
    Date of Patent: November 23, 2010
    Assignee: The United States of America as represented by the Secretary of the Navy
    Inventors: Robert Michael Riser, Matthew Joseph Stepura, Mark Andrew Long, Allen James Landers
  • Publication number: 20090273488
    Abstract: An onboard system for a rotary wing aircraft detects a limit cycle oscillation in the tail mast and provides a timely indication of the limit cycle oscillation to an aircrew before serious damage to the airframe is likely to occur.
    Type: Application
    Filed: May 1, 2008
    Publication date: November 5, 2009
    Inventors: Robert Michael Riser, Matthew Joseph Stepura, Mark Andrew Long, Allen James Landers
  • Publication number: 20080220323
    Abstract: This application relates to cast enclosures for battery replacement application, such as enclosures configured to house power units comprising a fuel cell and an energy storage device. The enclosures function as protective enclosures and counterweights, provide mounting points and conduits for gases, fluids, plumbing and wiring, and serve as thermal energy storage/transfer devices. The enclosures are formed in a mold or die and comprise wall portions defining a plurality of internal subcompartments for receiving the various system components. In one embodiment of the invention channels may be formed in the wall portions of the enclosures for circulating a heat transfer fluid therethrough.
    Type: Application
    Filed: September 10, 2007
    Publication date: September 11, 2008
    Applicant: Cellex Power Products, Inc.
    Inventors: Adrian J. Corless, David Aaron Leboe, Neil Brian Fagan, Kenneth William Kratschmar, Hamid Reza Tamehi, Jeremy Shane Lindstrom, Zebedee James Lander, Christopher E.J. Reid