Patents by Inventor Roger J. Chen

Roger J. 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).

  • Publication number: 20150153303
    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: Application
    Filed: December 2, 2014
    Publication date: June 4, 2015
    Inventor: Roger J.A. Chen
  • Patent number: 9041420
    Abstract: Techniques for characterizing a molecule are described herein. In one example, a portion of the molecule is trapped in a nanopore, a variable voltage is applied across the nanopore until the trapped portion of molecule is moved within the nanopore, and the molecule is characterized based on the electrical stimulus required to affect movement of at least a portion of the trapped portion of the molecule within the nanopore.
    Type: Grant
    Filed: May 13, 2013
    Date of Patent: May 26, 2015
    Assignee: Genia Technologies, Inc.
    Inventors: Roger J. A. Chen, Randy Davis
  • Publication number: 20150107996
    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 17, 2013
    Publication date: April 23, 2015
    Inventor: Roger J.A. Chen
  • Publication number: 20150094214
    Abstract: Techniques for characterizing a molecule are described herein. In one example, a portion of the molecule is trapped in a nanopore, a variable voltage is applied across the nanopore until the trapped portion of molecule is moved within the nanopore, and the molecule is characterized based on the electrical stimulus required to affect movement of at least a portion of the trapped portion of the molecule within the nanopore.
    Type: Application
    Filed: October 14, 2014
    Publication date: April 2, 2015
    Inventors: Roger J.A. Chen, Randy Davis
  • Patent number: 8986629
    Abstract: A device for controlling, detecting, and measuring a molecular complex is disclosed. The device comprises a common electrode. The device further comprises a plurality of measurement cells. Each measurement cell includes a cell electrode and an integrator electronically coupled to the cell electrode. The integrator measures the current flowing between the common electrode and the cell electrode. The device further comprises a plurality of analog-to-digital converters, wherein an integrator from the plurality of measurement cells is electrically coupled to one analog-to-digital converter of the plurality of analog-to-digital converters.
    Type: Grant
    Filed: February 26, 2013
    Date of Patent: March 24, 2015
    Assignee: Genia Technologies, Inc.
    Inventors: Kevin Deierling, Roger J. A. Chen, David J. Fullagar
  • Publication number: 20150056364
    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: Application
    Filed: July 17, 2014
    Publication date: February 26, 2015
    Inventors: Roger J.A. Chen, Randy Davis
  • Publication number: 20150011402
    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: August 28, 2014
    Publication date: January 8, 2015
    Applicant: GENIA TECHNOLOGIES, INC.
    Inventors: Randall W. Davis, Roger J.A. Chen
  • Patent number: 8928097
    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 21, 2013
    Date of Patent: January 6, 2015
    Assignee: Genia Technologies, Inc.
    Inventor: Roger J. A. Chen
  • Publication number: 20140374253
    Abstract: Techniques for manipulating a molecule in a nanopore embedded in a lipid bilayer are described. In one example, an acquiring electrical stimulus level is applied across a lipid bilayer wherein a region of the lipid bilayer containing the nanopore is characterized by a resistance and wherein the acquiring electrical stimulus level tends to draw the molecule from a surrounding fluid into the nanopore, a change in the resistance of the lipid bilayer resulting from the acquisition of at least a portion of a molecule into the nanopore is detected, the acquiring electrical stimulus level is changed to a holding electrical stimulus level wherein the portion of the molecule remains in the nanopore upon the changing of the acquiring electrical stimulus level to the holding electrical stimulus level.
    Type: Application
    Filed: July 17, 2014
    Publication date: December 25, 2014
    Inventors: Roger J.A. Chen, Randy Davis
  • Publication number: 20140374252
    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: July 18, 2014
    Publication date: December 25, 2014
    Inventors: Roger J.A. Chen, Randy Davis
  • Patent number: 8845880
    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: Grant
    Filed: December 21, 2011
    Date of Patent: September 30, 2014
    Assignee: Genia Technologies, Inc.
    Inventors: Randall W. Davis, Roger J. A. Chen
  • Publication number: 20140203464
    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: January 8, 2014
    Publication date: July 24, 2014
    Inventors: Roger J.A. Chen, Randy Davis
  • Publication number: 20140027866
    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 21, 2013
    Publication date: January 30, 2014
    Applicant: Genia Technologies, Inc.
    Inventor: Roger J.A. Chen
  • Publication number: 20140014513
    Abstract: Techniques for characterizing a molecule are described herein. In one example, a portion of the molecule is trapped in a nanopore, a variable voltage is applied across the nanopore until the trapped portion of molecule is moved within the nanopore, and the molecule is characterized based on the electrical stimulus required to affect movement of at least a portion of the trapped portion of the molecule within the nanopore.
    Type: Application
    Filed: May 13, 2013
    Publication date: January 16, 2014
    Applicant: Genia Technologies, inc.
    Inventors: Roger J.A. Chen, Randy Davis
  • Publication number: 20130300093
    Abstract: An active bolster has an expandable inner wall including a bay having first and second opposing ends and a central bowl. An expandable outer wall overlies the inner wall to provide a main cavity therebetween. An inflator is mounted within the bay having an outlet nozzle with a plurality of outlet passages for radially discharging an inflation gas against the bay and the outer wall in response to inflate the main cavity during a crash. The inner wall of the central bowl includes a plurality of first dispersion ribs substantially parallel with one another and following arcuate paths to provide at least one gas channel with opposite ends emptying from the central bowl into the main cavity. The outer wall includes a plurality of second dispersion ribs oriented to channel inflation gas from the central bowl toward the outer peripheral edges.
    Type: Application
    Filed: May 8, 2012
    Publication date: November 14, 2013
    Applicant: FORD GLOBAL TECHNOLOGIES, LLC
    Inventors: Raymond E. Kalisz, Roger J. Chen
  • Patent number: 8573643
    Abstract: An active bolster has an expandable inner wall including a bay having first and second opposing ends and a central bowl. An expandable outer wall overlies the inner wall to provide a main cavity therebetween. An inflator is mounted within the bay having an outlet nozzle with a plurality of outlet passages for radially discharging an inflation gas against the bay and the outer wall in response to inflate the main cavity during a crash. The inner wall of the central bowl includes a plurality of first dispersion ribs substantially parallel with one another and following arcuate paths to provide at least one gas channel with opposite ends emptying from the central bowl into the main cavity. The outer wall includes a plurality of second dispersion ribs oriented to channel inflation gas from the central bowl toward the outer peripheral edges.
    Type: Grant
    Filed: May 8, 2012
    Date of Patent: November 5, 2013
    Assignee: Ford Global Technologies, LLC
    Inventors: Raymond E. Kalisz, Roger J. Chen
  • Publication number: 20130237460
    Abstract: A device for controlling, detecting, and measuring a molecular complex is disclosed. The device comprises a common electrode. The device further comprises a plurality of measurement cells. Each measurement cell includes a cell electrode and an integrator electronically coupled to the cell electrode. The integrator measures the current flowing between the common electrode and the cell electrode. The device further comprises a plurality of analog-to-digital converters, wherein an integrator from the plurality of measurement cells is electrically coupled to one analog-to-digital converter of the plurality of analog-to-digital converters.
    Type: Application
    Filed: February 26, 2013
    Publication date: September 12, 2013
    Applicant: GENIA TECHNOLOGIES, INC.
    Inventors: Kevin Deierling, Roger J.A. Chen, David J. Fullagar
  • Publication number: 20120160688
    Abstract: The present invention relates to a method of using nanopore to obtain sequence information of an unknown structure (unknown DNA) in a ss test DNA. The method comprises using speed bump to stall the ss test DNA in the nanopore at random positions of the ss test DNA to obtain sequence information of each and every nucleotides of the unknown DNA, and to construct the whole sequence of the unknown DNA. The present invention also relates to a novel method of trapping a ss test DNA in a nanopore using two bulky structures formed under different conditions (e.g. different temperature), and the bulky structures are able to keep the ss test DNA trapped in a nanopore at a working temperature.
    Type: Application
    Filed: December 21, 2011
    Publication date: June 28, 2012
    Inventors: Randall W. Davis, Roger J.A. Chen
  • Publication number: 20120160681
    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: December 21, 2011
    Publication date: June 28, 2012
    Inventors: Randall W. Davis, Roger J.A. Chen