Patents by Inventor Roger J.A. Chen

Roger J.A. Chen 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: 9869655
    Abstract: A system for detecting electrical properties of a molecular complex is disclosed. The system includes an electrode electrically coupled to a molecular complex that outputs an electrical signal affected by an electrical property of the molecular complex, wherein the effect of the electrical property of the molecular complex on the electrical signal is characterized by an expected bandwidth. The system further includes an integrating amplifier circuit configured to: receive the electrical signal from the electrode. The integrating amplifier circuit is further configured to selectively amplify and integrate a portion of the electrical signal over time within a predetermined bandwidth, wherein the predetermined bandwidth is selected at least in part based on the expected bandwidth.
    Type: Grant
    Filed: December 2, 2014
    Date of Patent: January 16, 2018
    Assignee: Genia Technologies, Inc.
    Inventor: Roger J. A. Chen
  • Patent number: 9863904
    Abstract: A method of analyzing a molecule is disclosed. A voltage source is selectively connected to or disconnected from a capacitor using a switch controlled by a reset signal. A charge is stored in a capacitor when the voltage source is connected to the capacitor. The capacitor is discharged through a nanopore in a membrane when the voltage source is disconnected from the capacitor. A duty cycle of the reset signal is determined such that the voltage source and the capacitor is connected for at least a one tenth portion of a reset signal period and disconnected for a remaining portion of the reset signal period, such that a voltage across the nanopore is maintained at a higher level during the portion of the reset signal period in which the connection is maintained than during the remaining portion of the reset signal period in which the connection is not maintained.
    Type: Grant
    Filed: December 16, 2015
    Date of Patent: January 9, 2018
    Assignee: Genia Technologies, Inc.
    Inventors: Roger J. A. Chen, Hui Tian, Bill Maney
  • Publication number: 20170361298
    Abstract: A system for regulating a temperature of a measurement array is disclosed. The system includes a measurement array including a plurality of sensors, wherein the plurality of sensors are integrated onto an integrated circuit die. The system includes a thermal sensor integrated onto the integrated circuit die, wherein the thermal sensor senses a temperature associated with the plurality of sensors. The system further includes a heat pump coupled to the integrated circuit die, wherein the heat pump is controlled by a feedback control circuit including the thermal sensor.
    Type: Application
    Filed: September 7, 2017
    Publication date: December 21, 2017
    Inventor: Roger J.A. Chen
  • Patent number: 9827939
    Abstract: An airbag includes a manifold having an outer panel and an inflation chamber defined at least in party by the outer panel. The airbag further includes a first compartment and a second compartment spaced from the first compartment connected to the outer panel and positioned external to the inflation chamber. A first one-way valve is in fluid communication with the manifold and the first compartment, and a second one-way valve is in fluid communication with the manifold and the second compartment.
    Type: Grant
    Filed: May 6, 2016
    Date of Patent: November 28, 2017
    Assignee: Ford Global Technologies, LLC
    Inventors: Raj S. Roychoudhury, Roger J. Chen
  • Publication number: 20170322195
    Abstract: A method of forming a nanopore in a lipid bilayer is disclosed. A nanopore forming solution is deposited over a lipid bilayer. The nanopore forming solution has a concentration level and a corresponding activity level of pore molecules such that nanopores are substantially not formed un-stimulated in the lipid bilayer. Formation of a nanopore in the lipid bilayer is initiated by applying an agitation stimulus level to the lipid bilayer. In some embodiments, the concentration level and the corresponding activity level of pore molecules are at levels such that less than 30 percent of a plurality of available lipid bilayers have nanopores formed un-stimulated therein.
    Type: Application
    Filed: April 14, 2017
    Publication date: November 9, 2017
    Inventors: Roger J.A. Chen, Randy Davis
  • Publication number: 20170320460
    Abstract: An airbag includes a manifold having an outer panel and an inflation chamber defined at least in party by the outer panel. The airbag further includes a first compartment and a second compartment spaced from the first compartment connected to the outer panel and positioned external to the inflation chamber. A first one-way valve is in fluid communication with the manifold and the first compartment, and a second one-way valve is in fluid communication with the manifold and the second compartment.
    Type: Application
    Filed: May 6, 2016
    Publication date: November 9, 2017
    Applicant: Ford Global Technologies, LLC
    Inventors: Raj S. Roychoudhury, Roger J. Chen
  • Patent number: 9806033
    Abstract: A device having an integrated noise shield is disclosed. The device includes a plurality of vertical shielding structures substantially surrounding a semiconductor device. The device further includes an opening above the semiconductor device substantially filled with a conductive fluid, wherein the plurality of vertical shielding structures and the conductive fluid shield the semiconductor device from ambient radiation. In some embodiments, the device further includes a conductive bottom shield below the semiconductor device shielding the semiconductor device from ambient radiation. In some embodiments, the opening is configured to allow a biological sample to be introduced into the semiconductor device. In some embodiments, the vertical shielding structures comprise a plurality of vias, wherein each of the plurality of vias connects more than one conductive layers together.
    Type: Grant
    Filed: August 18, 2016
    Date of Patent: October 31, 2017
    Assignee: Genia Technologies, Inc.
    Inventor: Roger J. A. Chen
  • Patent number: 9789460
    Abstract: A system for regulating a temperature of a measurement array is disclosed. The system includes a measurement array including a plurality of sensors, wherein the plurality of sensors are integrated onto an integrated circuit die. The system includes a thermal sensor integrated onto the integrated circuit die, wherein the thermal sensor senses a temperature associated with the plurality of sensors. The system further includes a heat pump coupled to the integrated circuit die, wherein the heat pump is controlled by a feedback control circuit including the thermal sensor.
    Type: Grant
    Filed: June 15, 2016
    Date of Patent: October 17, 2017
    Assignee: Genia Technologies, Inc.
    Inventor: Roger J. A. Chen
  • Publication number: 20170283867
    Abstract: A method of forming a plurality of lipid bilayers over an array of cells in a nanopore based sequencing chip is disclosed. Each of the cells comprises a well. A salt buffer solution is flowed over the array of cells in the nanopore based sequencing chip to substantially fill the wells in the cells with the salt buffer solution. A lipid and solvent mixture is flowed over the array of cells to deposit the lipid and solvent mixture over at least some of the wells in the cells. A first portion of the cells, each having a lipid bilayer over its well, is detected. A second portion of the cells, each having a lipid membrane but not a lipid bilayer over its well, is detected. An electrical lipid-thinning stimulus is selectively applied to the second portion of the cells but not to the first portion of the cells.
    Type: Application
    Filed: March 30, 2016
    Publication date: October 5, 2017
    Inventors: Ashraf Wahba, William Nielsen, J. William Maney, JR., Kevin Aliado, Kyle Umeda, Roger J.A. Chen, Jing Luo
  • Publication number: 20170283866
    Abstract: A method of detecting a lipid bilayer formed in a cell of a nanopore based sequencing chip is disclosed. An integrating capacitor is coupled with a lipid membrane, wherein the lipid membrane is between a working electrode and a counter electrode. An alternating current (AC) voltage is applied to the counter electrode. A voltage across the integrating capacitor is periodically sampled by an analog-to-digital converter (ADC). A change in the sampled voltage across the integrating capacitor in response to a change in the AC voltage is determined. Whether the lipid membrane comprises a lipid bilayer is detected based on the determined change in the sampled voltage across the integrating capacitor in response to the change in the AC voltage.
    Type: Application
    Filed: March 30, 2016
    Publication date: October 5, 2017
    Inventors: Ashraf Wahba, William Nielsen, Jing Luo, Kevin Aliado, Kyle Umeda, Roger J.A. Chen
  • Patent number: 9759711
    Abstract: A method of analyzing molecules using a nanopore array including a plurality of cells included on a chip is disclosed. Nanopores are caused to be formed in at least a portion of the plurality of the cells. A first physical measurement of the nanopores is evaluated. It is determined whether to cause the molecules to interact with the nanopores. At least a portion of the nanopores is caused to interact with the molecules. A second physical measurement of the nanopores that indicates a property of the molecules is evaluated. It is determined whether to cause the nanopores to be reformed so that the cells may be reused to interact with additional molecules.
    Type: Grant
    Filed: February 5, 2013
    Date of Patent: September 12, 2017
    Assignee: Genia Technologies, Inc.
    Inventors: Roger J. A. Chen, David J. Fullagar
  • Publication number: 20170254797
    Abstract: A method of analyzing molecules using a nanopore array including a plurality of cells included on a chip is disclosed. Nanopores are caused to be formed in at least a portion of the plurality of the cells. A first physical measurement of the nanopores is evaluated. It is determined whether to cause the molecules to interact with the nanopores. At least a portion of the nanopores is caused to interact with the molecules. A second physical measurement of the nanopores that indicates a property of the molecules is evaluated. It is determined whether to cause the nanopores to be reformed so that the cells may be reused to interact with additional molecules.
    Type: Application
    Filed: March 17, 2017
    Publication date: September 7, 2017
    Inventors: Roger J.A. Chen, David J. Fullagar
  • Publication number: 20170203520
    Abstract: Techniques for forming a nanopore in a lipid bilayer are described herein. In one example, an agitation stimulus level such as an electrical agitation stimulus is applied to a lipid bilayer wherein the agitation stimulus level tends to facilitate the formation of nanopores in the lipid bilayer. In some embodiments, a change in an electrical property of the lipid bilayer resulting from the formation of the nanopore in the lipid bilayer is detected, and a nanopore has formed in the lipid bilayer is determined based on the detected change in the lipid bilayer electrical property.
    Type: Application
    Filed: January 20, 2017
    Publication date: July 20, 2017
    Inventors: Roger J.A. Chen, Randy Davis
  • Publication number: 20170199151
    Abstract: A system for communicating information from an array of sensors is disclosed. The system comprises a sensor array that includes a plurality of sensors, wherein each sensor senses a physical property of a material that is in communication with the sensor. The system further comprises signal processing circuitry associated with each sensor that integrates the output of the sensor over time and compares the integrated output to a threshold. The system further comprises a communication network coupled to the signal processing circuitry that outputs information indicating that the integrated output corresponding to a given sensor has reached the threshold.
    Type: Application
    Filed: December 15, 2016
    Publication date: July 13, 2017
    Inventor: Roger J.A. Chen
  • Publication number: 20170199150
    Abstract: A method of analyzing a molecule in a nanopore is disclosed. A voltage is applied across a nanopore that is inserted in a membrane by coupling the nanopore to a voltage source. The nanopore is decoupled from the voltage source. After the decoupling, a rate of decay of the voltage across the nanopore is determined. A molecule in the nanopore is distinguished from other possible molecules based on the determined rate of decay of the voltage across the nanopore.
    Type: Application
    Filed: December 6, 2016
    Publication date: July 13, 2017
    Inventors: Roger J.A. Chen, Hui Tian, J. William Maney, Jr.
  • Patent number: 9678055
    Abstract: A method of forming a nanopore in a lipid bilayer is disclosed. A nanopore forming solution is deposited over a lipid bilayer. The nanopore forming solution has a concentration level and a corresponding activity level of pore molecules such that nanopores are substantially not formed un-stimulated in the lipid bilayer. Formation of a nanopore in the lipid bilayer is initiated by applying an agitation stimulus level to the lipid bilayer. In some embodiments, the concentration level and the corresponding activity level of pore molecules are at levels such that less than 30 percent of a plurality of available lipid bilayers have nanopores formed un-stimulated therein.
    Type: Grant
    Filed: January 8, 2014
    Date of Patent: June 13, 2017
    Assignee: Genia Technologies, Inc.
    Inventors: Roger J. A. Chen, Randy Davis
  • Publication number: 20170159117
    Abstract: The present invention relates to a method of using nanopores to obtain sequence information of sample DNAs in ss test DNAs. The method comprises using speed bumps to stall the ss test DNAs in the nanopores at random positions of the ss test DNAs to obtain sequence information of each and every nucleotides of the sample DNAs, and to construct the whole sequences of the sample DNAs. The present invention also relates to identification and/or isolation of test DNAs having desired sequence(s) using nanopore detectors facilitated by speed bump.
    Type: Application
    Filed: February 16, 2017
    Publication date: June 8, 2017
    Applicant: Genia Technologies, Inc.
    Inventors: Randall W Davis, Roger J.A. Chen
  • Publication number: 20170153205
    Abstract: A method of identifying a molecule is disclosed. A molecule is drawn to a nanopore by applying a first voltage signal to a pair of electrodes during a first period, wherein the first voltage signal causes a first ionic current through the nanopore that is indicative of a property of a portion of the molecule proximate to the nanopore. The molecule is released from the nanopore by applying a second voltage signal to the pair of electrodes during a second period, wherein the second voltage signal causes a second ionic current through the nanopore. The first period and the second period are determined based at least in part on a net ionic current through the nanopore comprising the first ionic current and the second ionic current.
    Type: Application
    Filed: October 7, 2016
    Publication date: June 1, 2017
    Inventor: Roger J.A. Chen
  • Publication number: 20170103952
    Abstract: A device having an integrated noise shield is disclosed. The device includes a plurality of vertical shielding structures substantially surrounding a semiconductor device. The device further includes an opening above the semiconductor device substantially filled with a conductive fluid, wherein the plurality of vertical shielding structures and the conductive fluid shield the semiconductor device from ambient radiation. In some embodiments, the device further includes a conductive bottom shield below the semiconductor device shielding the semiconductor device from ambient radiation. In some embodiments, the opening is configured to allow a biological sample to be introduced into the semiconductor device. In some embodiments, the vertical shielding structures comprise a plurality of vias, wherein each of the plurality of vias connects more than one conductive layers together.
    Type: Application
    Filed: August 18, 2016
    Publication date: April 13, 2017
    Inventor: Roger J.A. Chen
  • Patent number: 9617595
    Abstract: Techniques for assembling a lipid bilayer on a substantially planar solid surface are described herein. In one example, a lipid material such as a lipid suspension is deposited on a substantially planar solid surface, a bubble filled with fast diffusing gas molecules is formed on the solid surface, and the gas molecules are allowed to diffuse out of the bubble to form a lipid bilayer on the solid surface.
    Type: Grant
    Filed: July 17, 2014
    Date of Patent: April 11, 2017
    Assignee: Genia Technologies, Inc.
    Inventors: Roger J. A. Chen, Randy Davis