Patents by Inventor John Stuart Foster

John Stuart Foster 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: 11923004
    Abstract: A system and method of storing and reading digital data, including providing a nanopore polymer memory (NPM) device having at least one memory cell comprising at least two addition chambers each arranged to add a unique chemical construct (or codes) to a polymer (or DNA) string when the polymer enters the respective addition chamber, the data comprising a series of codes; successively steering the polymer from deblock chambers through the nanopore into the addition chambers to add codes to the polymer to create the digital data pattern on the polymer; and accurately controlling the bit rate of the polymer using a servo controller. The device may have loading chamber(s) to load (or remove) the polymer into/from the deblock chambers through at least one “micro-hole”. The cell may be part of a memory system that stores and retrieves “raw” data and allows for remote retrieval and conversion. The cell may store multi-bit data having a plurality of states for the codes.
    Type: Grant
    Filed: February 17, 2023
    Date of Patent: March 5, 2024
    Assignee: IRIDIA, INC.
    Inventors: Paul F. Predki, John Stuart Foster
  • Publication number: 20230207001
    Abstract: A system and method of storing and reading digital data, including providing a nanopore polymer memory (NPM) device having at least one memory cell comprising at least two addition chambers each arranged to add a unique chemical construct (or codes) to a polymer (or DNA) string when the polymer enters the respective addition chamber, the data comprising a series of codes; successively steering the polymer from deblock chambers through the nanopore into the addition chambers to add codes to the polymer to create the digital data pattern on the polymer; and accurately controlling the bit rate of the polymer using a servo controller. The device may have loading chamber(s) to load (or remove) the polymer into/from the deblock chambers through at least one “micro-hole”. The cell may be part of a memory system that stores and retrieves “raw” data and allows for remote retrieval and conversion. The cell may store multi-bit data having a plurality of states for the codes.
    Type: Application
    Filed: February 17, 2023
    Publication date: June 29, 2023
    Applicant: IRIDIA, INC.
    Inventors: Paul F. PREDKI, John Stuart FOSTER
  • Patent number: 11600324
    Abstract: A system and method of storing and reading digital data, including providing a nanopore polymer memory (NPM) device having at least one memory cell comprising at least two addition chambers each arranged to add a unique chemical construct (or codes) to a polymer (or DNA) string when the polymer enters the respective addition chamber, the data comprising a series of codes; successively steering the polymer from deblock chambers through the nanopore into the addition chambers to add codes to the polymer to create the digital data pattern on the polymer; and accurately controlling the bit rate of the polymer using a servo controller. The device may have loading chamber(s) to load (or remove) the polymer into/from the deblock chambers through at least one “micro-hole”. The cell may be part of a memory system that stores and retrieves “raw” data and allows for remote retrieval and conversion. The cell may store multi-bit data having a plurality of states for the codes.
    Type: Grant
    Filed: October 15, 2021
    Date of Patent: March 7, 2023
    Assignee: IRIDIA, INC.
    Inventors: Paul F. Predki, John Stuart Foster
  • Publication number: 20220036948
    Abstract: A system and method of storing and reading digital data, including providing a nanopore polymer memory (NPM) device having at least one memory cell comprising at least two addition chambers each arranged to add a unique chemical construct (or codes) to a polymer (or DNA) string when the polymer enters the respective addition chamber, the data comprising a series of codes; successively steering the polymer from deblock chambers through the nanopore into the addition chambers to add codes to the polymer to create the digital data pattern on the polymer; and accurately controlling the bit rate of the polymer using a servo controller. The device may have loading chamber(s) to load (or remove) the polymer into/from the deblock chambers through at least one “micro-hole”. The cell may be part of a memory system that stores and retrieves “raw” data and allows for remote retrieval and conversion. The cell may store multi-bit data having a plurality of states for the codes.
    Type: Application
    Filed: October 15, 2021
    Publication date: February 3, 2022
    Inventors: Paul F. PREDKI, John Stuart FOSTER
  • Patent number: 11152061
    Abstract: A system and method of storing and reading digital data, including providing a nanopore polymer memory (NPM) device having at least one memory cell comprising at least two addition chambers each arranged to add a unique chemical construct (or codes) to a polymer (or DNA) string when the polymer enters the respective addition chamber, the data comprising a series of codes; successively steering the polymer from deblock chambers through the nanopore into the addition chambers to add codes to the polymer to create the digital data pattern on the polymer; and accurately controlling the bit rate of the polymer using a servo controller. The device may have loading chamber(s) to load (or remove) the polymer into/from the deblock chambers through at least one “micro-hole”. The cell may be part of a memory system that stores and retrieves “raw” data and allows for remote retrieval and conversion. The cell may store multi-bit data having a plurality of states for the codes.
    Type: Grant
    Filed: May 4, 2020
    Date of Patent: October 19, 2021
    Assignee: IRIDIA, INC.
    Inventors: Paul F. Predki, John Stuart Foster
  • Publication number: 20200265890
    Abstract: A system and method of storing and reading digital data, including providing a nanopore polymer memory (NPM) device having at least one memory cell comprising at least two addition chambers each arranged to add a unique chemical construct (or codes) to a polymer (or DNA) string when the polymer enters the respective addition chamber, the data comprising a series of codes; successively steering the polymer from deblock chambers through the nanopore into the addition chambers to add codes to the polymer to create the digital data pattern on the polymer; and accurately controlling the bit rate of the polymer using a servo controller. The device may have loading chamber(s) to load (or remove) the polymer into/from the deblock chambers through at least one “micro-hole”. The cell may be part of a memory system that stores and retrieves “raw” data and allows for remote retrieval and conversion. The cell may store multi-bit data having a plurality of states for the codes.
    Type: Application
    Filed: May 4, 2020
    Publication date: August 20, 2020
    Inventors: Paul F. PREDKI, John Stuart FOSTER
  • Patent number: 10132739
    Abstract: A particle manipulation system uses a MEMS-based, microfabricated particle manipulation device which has an inlet channel, output channels, and a movable member formed on a substrate. The movable member moves parallel to the fabrication plane, as does fluid flowing in the inlet channel. The movable member separates a target particle from the rest of the particles, diverting it into an output channel. However, at least one output channel is not parallel to the fabrication plane. The device may be used to separate a target particle from non-target material in a sample stream. In the event that the microfabricated particle manipulation device malfunctions as a result of a particle of debris becoming lodged in the microfabricated particle manipulation device, the system may invoke a recovery algorithm, that includes vibrating the microfabricated particle manipulation device using a pulse train at a frequency near its mechanical resonance.
    Type: Grant
    Filed: May 20, 2016
    Date of Patent: November 20, 2018
    Assignee: Owl biomedical, Inc.
    Inventors: John Stuart Foster, Kevin Eugene Shields, Mark Naivar, Mehran Rajaian Hoonejani
  • Publication number: 20160377526
    Abstract: A particle manipulation system uses a MEMS-based, microfabricated particle manipulation device which has an inlet channel, output channels, and a movable member formed on a substrate. The movable member moves parallel to the fabrication plane, as does fluid flowing in the inlet channel. The movable member separates a target particle from the rest of the particles, diverting it into an output channel. However, at least one output channel is not parallel to the fabrication plane. The device may be used to separate a target particle from non-target material in a sample stream. In the event that the microfabricated particle manipulation device malfunctions as a result of a particle of debris becoming lodged in the microfabricated particle manipulation device, the system may invoke a recovery algorithm, that includes vibrating the microfabricated particle manipulation device using a pulse train at a frequency near its mechanical resonance.
    Type: Application
    Filed: May 20, 2016
    Publication date: December 29, 2016
    Applicant: Owl biomedical, Inc.
    Inventors: John Stuart FOSTER, Kevin Eugene SHIELDS, Mark NAIVAR, Mehran Rajaian Hoonejani
  • Patent number: 7264972
    Abstract: A micromechanical actuator for sorting hematopoietic stem cells for use in cancer therapies. The actuator operates by diverting cells into one of a number of possible pathways fabricated in the fabrication substrate of the micromechanical actuator, when fluorescence is detected emanating from the cells. The fluorescence results from irradiating the cells with laser light, which excites a fluorescent tag attached to the cell. The micromechanical actuator thereby sorts the cells individually, with an operation rate of 3.3 kHz, however with the massively parallel 1024-fold device described herein, a throughput of 3.3 million events/second is achievable.
    Type: Grant
    Filed: November 1, 2004
    Date of Patent: September 4, 2007
    Assignee: Innovative Micro Technology
    Inventor: John Stuart Foster
  • Patent number: 7057245
    Abstract: The invention describes a method and apparatus for deploying micromachined actuators in a plane which is orthogonal to the original fabrication plane of the devices. Using batch-processing, photolithographic procedures known in the micromachined electro-mechanical system (MEMS) art, a plurality of devices is constructed on a suitable substrate. The devices are then separated one from another by sawing and dicing the original fabrication wafer. The devices are rotated into an orthogonal orientation and affixed to a second wafer. The second wafer also contains circuitry for addressing and manipulating each of the devices independently of the others. With this method and apparatus, arrays of actuators are constructed whose plane of actuation is perpendicular to the plane of the array. This invention is useful for constructing N×M fiber optic switches, which direct light from N input fibers into M output fibers.
    Type: Grant
    Filed: June 12, 2004
    Date of Patent: June 6, 2006
    Assignee: Innovative Micro Technology
    Inventors: Patrick Edward Feierabend, Richard Thomas Martin, Jeffery Frank Summers, Andrew Dexter Wallis, Paul J. Rubel, John Stuart Foster, John W Stocker
  • Patent number: 6838056
    Abstract: A micromechanical actuator for sorting hematopoietic stem cells for use in cancer therapies. The actuator operates by diverting cells into one of a number of possible pathways fabricated in the fabrication substrate of the micromechanical actuator, when fluorescence is detected emanating from the cells. The fluorescence results from irradiating the cells with laser light, which excites a fluorescent tag attached to the cell. The micromechanical actuator thereby sorts the cells individually, with an operation rate of 3.3 kHz, however with the massively parallel 1024-fold device described herein, a throughput of 3.3 million events/second is achievable.
    Type: Grant
    Filed: July 8, 2002
    Date of Patent: January 4, 2005
    Assignee: Innovative Micro Technology
    Inventor: John Stuart Foster
  • Patent number: 6831380
    Abstract: A surface micromachined micromagnetic actuator is described, wherein rotary actuation is accomplished by a member pivotably mounted on the surface of the substrate. Angular motion of the member about the pivot point is imparted by the interaction of a magnetic tab affixed to the member, with flux generated in the gap of an electromagnetic core. Rotary motion is restricted to less than 360 degrees by using an integrally formed hinge between the pivoting member and the pivot point, rather than by a more complex bearing. By virtue of this design, a large range of motion can be achieved without requiring a true bearing to be fabricated in the device. The pivoting member is also constrained in either of two stable positions upon de-energization of the electromagnetic core, by the attachment of a bistable spring between the pivoting member and the substrate.
    Type: Grant
    Filed: January 17, 2001
    Date of Patent: December 14, 2004
    Assignee: Innovative Micro Technology
    Inventors: Tara Jean Rybnicek, John Wesley Stocker, Jeffery Frank Summers, John Stuart Foster, Richard Thomas Martin, Paul John Rubel, Patrick Edward Feierabend
  • Patent number: 6812061
    Abstract: The invention describes a method and apparatus for deploying micromachined actuators in a plane which is orthogonal to the original fabrication plane of the devices. Using batch-processing, photolithographic procedures known in the micromachined electro-mechanical system (MEMS) art, a plurality of devices is constructed on a suitable substrate. The devices are then separated one from another by sawing and dicing the original fabrication wafer. The devices are rotated into an orthogonal orientation and affixed to a second wafer. The second wafer also contains circuitry for addressing and manipulating each of the devices independently of the others. With this method and apparatus, arrays of actuators are constructed whose plane of actuation is perpendicular to the plane of the array. This invention is useful for constructing N×M fiber optic switches, which direct light from N input fibers into M output fibers.
    Type: Grant
    Filed: January 17, 2001
    Date of Patent: November 2, 2004
    Assignee: Innovative Micro Technology
    Inventors: Patrick Edward Feierabend, Richard Thomas Martin, Jeffery Frank Summers, Andrew Dexter Wallis, Paul J. Rubel, John Stuart Foster, John W Stocker
  • Publication number: 20040005628
    Abstract: A micromechanical actuator for sorting hematopoietic stem cells for use in cancer therapies. The actuator operates by diverting cells into one of a number of possible pathways fabricated in the fabrication substrate of the micromechanical actuator, when fluorescence is detected emanating from the cells. The fluorescence results from irradiating the cells with laser light, which excites a fluorescent tag attached to the cell. The micromechanical actuator thereby sorts the cells individually, with an operation rate of 3.3 kHz, however with the massively parallel 1024-fold device described herein, a throughput of 3.3 million events/second is achievable.
    Type: Application
    Filed: July 8, 2002
    Publication date: January 8, 2004
    Inventor: John Stuart Foster
  • Patent number: 6593749
    Abstract: Pressurized fluid from a nozzle is applied against the movable member of a micromechanical device, in order to measure the mechanical properties of the device. The technique is non-destructive, non-invasive, can be applied at the wafer, row or die level, and at early or intermediate stages of fabrication.
    Type: Grant
    Filed: May 31, 2001
    Date of Patent: July 15, 2003
    Assignee: Innovative Micro Technology
    Inventors: John Stuart Foster, Patrick Edward Feierabend, Michael James Shillinger
  • Publication number: 20030117027
    Abstract: A surface micromachined micromagnetic actuator is described, wherein rotary actuation is accomplished by a member pivotably mounted on the surface of the substrate. Angular motion of the member about the pivot point is imparted by the interaction of a magnetic tab affixed to the member, with flux generated in the gap of an electromagnetic core. Rotary motion is restricted to less than 360 degrees by using an integrally formed hinge between the pivoting member and the pivot point, rather than by a more complex bearing. By virtue of this design, a large range of motion can be achieved without requiring a true bearing to be fabricated in the device. The pivoting member is also constrained in either of two stable positions upon de-energization of the electromagnetic core, by the attachment of a bistable spring between the pivoting member and the substrate.
    Type: Application
    Filed: January 17, 2001
    Publication date: June 26, 2003
    Inventors: Tara Jean Rybnicek, John Wesley Stocker, Jeffery Frank Summers, John Stuart Foster, Richard Thomas Martin, Paul John Rubel, Patrick Edward Feierabend
  • Publication number: 20020180452
    Abstract: Pressurized fluid from a nozzle is applied against the movable member of a micromechanical device, in order to measure the mechanical properties of the device. The technique is non-destructive, non-invasive, can be applied at the wafer, row or die level, and at early or intermediate stages of fabrication.
    Type: Application
    Filed: May 31, 2001
    Publication date: December 5, 2002
    Inventors: John Stuart Foster, Patrick Edward Feierabend, Michael James Shillinger
  • Publication number: 20020117938
    Abstract: The present invention describes a parametric amplifier, which uses transverse plate modes of a mechanically elastic material as the nonlinear medium for the amplification. The device may be rendered as a filter, amplifier, oscillator or mixer, and multiple devices may be constructed in a small physical space using MEMS and photolithographic technologies. Because mechanical modes are used rather than acousto-electric interactions with a semiconductor, the parametric amplifier disclosed herein is more robust against severe environmental conditions such as temperature and ambient EM radiation.
    Type: Application
    Filed: February 27, 2001
    Publication date: August 29, 2002
    Inventors: John Stuart Foster, Richard Thomas Martin
  • Patent number: 6351201
    Abstract: A micromechanical switch having a plurality of stable positions, which can be driven between the stable positions with a minimum of residual oscillation. The low oscillation results from the application of a braking force of specific magnitude and duration to exactly cancel the excess energy imparted to the switch during actuation. The braking algorithm results in a faster settling time, thereby improving the performance of the switch.
    Type: Grant
    Filed: April 3, 2001
    Date of Patent: February 26, 2002
    Assignee: Innovative Micro Technology
    Inventor: John Stuart Foster