Patents by Inventor William Dunbar
William Dunbar 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).
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Patent number: 12285715Abstract: A system comprising a pumping system configured to pump respective exhaust gases from each of a plurality of chemical etching process chambers and to combine the exhaust gases to provide a combined exhaust gas, and a noble gas recovery system configured to process the combined exhaust gas to remove one or more noble gases therefrom.Type: GrantFiled: July 27, 2021Date of Patent: April 29, 2025Assignee: Edwards LimitedInventors: Andrew James Seeley, Stephen Bruce Cottle, Neil Condon, Christopher Mark Bailey, Julian Richard Dean, Joanne Rachel Greenwood, Zachary William Dunbar
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Publication number: 20250033963Abstract: Aspects of the present disclosure relate to hydrogen recovery system (1) for extracting hydrogen from process gases. The hydrogen recovery system (1) may include an electrochemical pump (11) for extracting at least some of the hydrogen occurring in the process gases. The electrochemical pump (11) has an anodic compartment (13) having at least one anode (14), a cathodic compartment (15) having at least one cathode (16), and a membrane (17) disposed between the anodic compartment (13) and the cathodic compartment (15). A controller (59) is provided for controlling electric current supplied to the electrochemical pump (11). The anodic compartment (13) has an anodic compartment inlet (23) for introducing the process gases into the anodic compartment (13); and an anodic compartment outlet (25) for discharging a waste gas from the anodic compartment (13). The cathodic compartment (15) has a cathodic compartment outlet (27) for discharging hydrogen extracted from the process gases.Type: ApplicationFiled: November 30, 2022Publication date: January 30, 2025Inventor: Zachary William Dunbar
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Publication number: 20240226806Abstract: A multistage electrochemical hydrogen pump, comprising a first electrochemical hydrogen pumping stage fluidly connected to a second electrochemical hydrogen pumping stage. The first electrochemical pumping stage is configured to receive a first gas mixture comprising hydrogen gas, electrochemically separate hydrogen gas from the first gas mixture to produce a second gas mixture, and output the second gas mixture to the second electrochemical pumping stage. The second electrochemical hydrogen pumping stage is configured to receive the second gas mixture from the first electrochemical hydrogen pumping stage, electrochemically separate hydrogen gas from the second gas mixture to produce a third gas mixture, and output the third gas mixture.Type: ApplicationFiled: January 31, 2022Publication date: July 11, 2024Inventor: Zachary William Dunbar
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Publication number: 20240131471Abstract: A multistage electrochemical hydrogen pump, comprising a first electrochemical hydrogen pumping stage fluidly connected to a second electrochemical hydrogen pumping stage. The first electrochemical pumping stage is configured to receive a first gas mixture comprising hydrogen gas, electrochemically separate hydrogen gas from the first gas mixture to produce a second gas mixture, and output the second gas mixture to the second electrochemical pumping stage. The second electrochemical hydrogen pumping stage is configured to receive the second gas mixture from the first electrochemical hydrogen pumping stage, electrochemically separate hydrogen gas from the second gas mixture to produce a third gas mixture, and output the third gas mixture.Type: ApplicationFiled: January 31, 2022Publication date: April 25, 2024Inventor: Zachary William Dunbar
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Patent number: 11054390Abstract: Provided is a device comprising a channel through and defined by a plurality of layers surrounding the channel, the channel connecting a first and a second chambers separated by the plurality of layers, wherein the plurality of layers comprise a first layer, a second layer; and a conductive middle layer disposed between the first and second layers, wherein the channel comprises (a) a first region defined by the first layer, denoted as an inlet, that is about 0.5 nm to about 100 nm in diameter and (b) a second region defined by the second layer, denoted as an outlet, wherein the inlet and the outlet are about 10 nm to about 1000 nm apart from each other, and wherein the first and second chambers and the middle layer are connected to a power supply. Also provided are methods of preparing and using the device, in particular for nucleic acid sequencing.Type: GrantFiled: June 17, 2019Date of Patent: July 6, 2021Assignees: The Regents of the University of California, Brigham Young UniversityInventors: William Dunbar, Holger Schmidt, Aaron Hawkins
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Publication number: 20200150084Abstract: Provided is a device comprising a channel through and defined by a plurality of layers surrounding the channel, the channel connecting a first and a second chambers separated by the plurality of layers, wherein the plurality of layers comprise a first layer, a second layer; and a conductive middle layer disposed between the first and second layers, wherein the channel comprises (a) a first region defined by the first layer, denoted as an inlet, that is about 0.5 nm to about 100 nm in diameter and (b) a second region defined by the second layer, denoted as an outlet, wherein the inlet and the outlet are about 10 nm to about 1000 nm apart from each other, and wherein the first and second chambers and the middle layer are connected to a power supply. Also provided are methods of preparing and using the device, in particular for nucleic acid sequencing.Type: ApplicationFiled: June 17, 2019Publication date: May 14, 2020Inventors: William Dunbar, Holger Schmidt, Aaron Hawkins
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Patent number: 9863912Abstract: Provided is a device comprising an upper chamber, a middle chamber and a lower chamber, wherein the upper chamber is in communication with the middle chamber through a first pore, and the middle chamber is in communication with the lower chamber through a second pore, wherein the first pore and second pore are about 1 nm to about 100 nm in diameter, and are about 10 nm to about 1000 nm apart from each other, and wherein each of the chambers comprises an electrode for connecting to a power supply. Methods of using the device are also provided, in particular for sequencing a polynucleotide.Type: GrantFiled: November 29, 2014Date of Patent: January 9, 2018Assignee: The Regents of the University of CaliforniaInventors: William Dunbar, Jungsuk Kim
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Publication number: 20170269034Abstract: Provided is a device comprising a channel through and defined by a plurality of layers surrounding the channel, the channel connecting a first and a second chambers separated by the plurality of layers, wherein the plurality of layers comprise a first layer, a second layer; and a conductive middle layer disposed between the first and second layers, wherein the channel comprises (a) a first region defined by the first layer, denoted as an inlet, that is about 0.5 nm to about 100 nm in diameter and (b) a second region defined by the second layer, denoted as an outlet, wherein the inlet and the outlet are about 10 nm to about 1000 nm apart from each other, and wherein the first and second chambers and the middle layer are connected to a power supply. Also provided are methods of preparing and using the device, in particular for nucleic acid sequencing.Type: ApplicationFiled: May 26, 2017Publication date: September 21, 2017Applicants: The Regents of the University of California, Brigham Young UniversityInventors: William Dunbar, Holger Schmidt, Aaron Hawkins
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Patent number: 9696277Abstract: Provided is a device comprising a channel through and defined by a plurality of layers surrounding the channel, the channel connecting a first and a second chambers separated by the plurality of layers, wherein the plurality of layers comprise a first layer, a second layer; and a conductive middle layer disposed between the first and second layers, wherein the channel comprises (a) a first region defined by the first layer, denoted as an inlet, that is about 0.5 nm to about 100 nm in diameter and (b) a second region defined by the second layer, denoted as an outlet, wherein the inlet and the outlet are about 10 nm to about 1000 nm apart from each other, and wherein the first and second chambers and the middle layer are connected to a power supply. Also provided are methods of preparing and using the device, in particular for nucleic acid sequencing.Type: GrantFiled: November 13, 2012Date of Patent: July 4, 2017Assignees: The Regents of the University of California, Brigham Young UniversityInventors: William Dunbar, Holger Schmidt, Aaron Hawkins
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Capacitive feedback (transimpedance) amplifier for use with nanopore detection and sequencing device
Publication number: 20170145481Abstract: A multiplexed nanopore sensing network comprising an integrated and multiplexed network of patch clamp capacitive integrator-differentiator amplifiers with small feedback capacitors using pseudo-resistors.Type: ApplicationFiled: February 4, 2017Publication date: May 25, 2017Applicant: The Regents of the University of CaliforniaInventors: Jungsuk Kim, William Dunbar -
Patent number: 9650670Abstract: A polynucleotide sequencer comprising an integrated and multiplexed network of patch clamp capacitive integrator-differentiator amplifiers with small feedback capacitors using pseudo-resistors.Type: GrantFiled: October 28, 2013Date of Patent: May 16, 2017Assignee: The Regents of the University of CaliforniaInventors: Jungsuk Kim, William Dunbar
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Publication number: 20160227718Abstract: The present invention provides a new and useful (i) plant root feeding device (ii) plant root feeding system, (iii) method of feeding a plant, and (iv) method of manufacturing a plant root feeding device. The plant root feeding device comprises a fluid container (emitter) formed of semi permeable material that allows fluid to pass from the inside of the container to a plant root located in ground in proximity to the fluid container. The fluid container has a fluid inlet opening, and a fluid inlet tube is in fluid communication with the fluid inlet opening of the fluid container. The fluid inlet tube has a fixed, fluid sealed coupling to the fluid inlet opening of the fluid container, and the fluid container has a configuration that enables it to be located in ground in proximity to an in ground root system of a plant, and a permeability that enables fluid to pass from the inside of the container to the in ground root system of a plant in proximity to the fluid container.Type: ApplicationFiled: February 11, 2015Publication date: August 11, 2016Inventors: John Matthews, William Dunbar
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Publication number: 20150377856Abstract: A compensated patch-clamp system for polynucleotide sequencing and other applications.Type: ApplicationFiled: June 24, 2015Publication date: December 31, 2015Applicant: THE REGENTS OF THE UNIVERSITY OF CALIFORNIAInventors: William Dunbar, Kenneth Pedrotti, Jungsuk Kim
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Publication number: 20150337367Abstract: A polynucleotide sequencer comprising an integrated and multiplexed network of patch clamp capacitive integrator-differentiator amplifiers with small feedback capacitors using pseudo-resistors.Type: ApplicationFiled: October 28, 2013Publication date: November 26, 2015Inventors: Jungsuk Kim, William Dunbar
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Patent number: 9101416Abstract: Spinal rod approximator for seating a stabilizing rod in a rod-receiving portion of a spinal implant and inserting closure mechanism is provided. In one embodiment, a spinal rod approximator is provided including a body with gripping branches, inserter shaft, threaded collar, and outer sleeve.Type: GrantFiled: October 21, 2010Date of Patent: August 11, 2015Assignee: DePuy Synthes Products, Inc.Inventors: William Dunbar, Jr., Christopher Ryan Rybicki, Ian Charles Burgess
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Publication number: 20150160160Abstract: Provided is a device comprising an upper chamber, a middle chamber and a lower chamber, wherein the upper chamber is in communication with the middle chamber through a first pore, and the middle chamber is in communication with the lower chamber through a second pore, wherein the first pore and second pore are about 1 nm to about 100 nm in diameter, and are about 10 nm to about 1000 nm apart from each other, and wherein each of the chambers comprises an electrode for connecting to a power supply. Methods of using the device are also provided, in particular for sequencing a polynucleotide.Type: ApplicationFiled: November 29, 2014Publication date: June 11, 2015Applicant: The Regents of the University of CaliforniaInventors: William Dunbar, Jungsuk Kim
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Patent number: 8961763Abstract: Provided is a device comprising an upper chamber, a middle chamber and a lower chamber, wherein the upper chamber is in communication with the middle chamber through a first pore, and the middle chamber is in communication with the lower chamber through a second pore, wherein the first pore and second pore are about 1 nm to about 100 nm in diameter, and are about 10 nm to about 1000 nm apart from each other, and wherein each of the chambers comprises an electrode for connecting to a power supply. Methods of using the device are also provided, in particular for sequencing a polynucleotide.Type: GrantFiled: July 18, 2012Date of Patent: February 24, 2015Assignee: The Regents of the University of CaliforniaInventors: William Dunbar, Jungsuk Kim
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Publication number: 20140318964Abstract: Provided is a device comprising a channel through and defined by a plurality of layers surrounding the channel, the channel connecting a first and a second chambers separated by the plurality of layers, wherein the plurality of layers comprise a first layer, a second layer; and a conductive middle layer disposed between the first and second layers, wherein the channel comprises (a) a first region defined by the first layer, denoted as an inlet, that is about 0.5 nm to about 100 nm in diameter and (b) a second region defined by the second layer, denoted as an outlet, wherein the inlet and the outlet are about 10 nm to about 1000 nm apart from each other, and wherein the first and second chambers and the middle layer are connected to a power supply. Also provided are methods of preparing and using the device, in particular for nucleic acid sequencing.Type: ApplicationFiled: November 13, 2012Publication date: October 30, 2014Applicants: Brigham Young University, The Regents of the University of CaliforniaInventors: William Dunbar, Holger Schmidt, Aaron Hawkins
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Patent number: 8864772Abstract: Various methods and devices are provided for implanting a motion segment repair system. In particular, exemplary methods and devices are provided for implanting a spinal disc implant and/or a PDS device using a posterior surgical approach, including methods and devices for distracting adjacent vertebrae using a posterior surgical approach, methods and devices for posteriorly introducing a spinal implant into a disc space between adjacent vertebrae, and methods and devices for coupling a PDS device to the adjacent vertebrae to provide a complete motion segment repair system that is implanted using a posterior surgical approach.Type: GrantFiled: January 20, 2011Date of Patent: October 21, 2014Assignee: DePuy Synthes Products, LLCInventors: Dominique Verhulst, Amie Borgstrom, Charles M. Bartish, Jr., John Riley Hawkins, SeungKyu Daniel Kwak, William Dunbar, Katherine Torres
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Patent number: 8709043Abstract: Various methods and devices for replacing damaged, injured, diseased, or otherwise unhealthy posterior elements, such as the facet joints, the lamina, the posterior ligaments, and/or other features of a patient's spinal column, are provided. In one exemplary embodiment, the methods and devices are effective to mimic the natural function of the spine by allowing flexion, extension, and lateral bending of the spine, while substantially restricting posterior-anterior shear and rotation of the spine.Type: GrantFiled: January 18, 2011Date of Patent: April 29, 2014Assignee: DePuy Spine, Inc.Inventors: SeungKyu Daniel Kwak, John Riley Hawkins, Amie Borgstrom, William Dunbar