Patents by Inventor Stephen Walker
Stephen Walker 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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Publication number: 20240133276Abstract: A side pocket mandrel for use in a gas lift system is configured to improve the recovery of petroleum fluids from a well. The side pocket mandrel includes an upper assembly joint, a lower assembly joint, and a central portion that has a total length (LT). The side pocket mandrel further comprises a central bore extending through the side pocket mandrel along a central longitudinal axis that extends through the upper and lower assembly joints. The side pocket mandrel further includes a tool channel offset from the central bore and a side pocket tube linearly aligned with the tool channel and configured to receive a gas lift valve. The side pocket mandrel further includes a pair of primary flow blocks that each have a length (LFa) that is at least 35% of the total length (LT) of the central portion of the side pocket mandrel.Type: ApplicationFiled: October 20, 2022Publication date: April 25, 2024Applicant: Baker Hughes Oilfield Operations LLCInventors: Donavan Brown, Ronnie Russell, Griffin Koehler, Laura Walker, Stephen Satterlee
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Publication number: 20240132467Abstract: Compounds of general formula (I): (I) wherein R1, R2, R3, R4, R5, Y and Z are as defined herein are useful for treating respiratory disease and other diseases and conditions modulated by TMEM16A.Type: ApplicationFiled: June 9, 2023Publication date: April 25, 2024Applicant: TMEM16A LimitedInventors: Stephen COLLINGWOOD, Jonathan David Hargrave, Duncan Alexander Hay, Clive McCarthy, Thomas Beauregard Schofield, Edward Walker, Naomi Went
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Patent number: 11958237Abstract: A three-dimensional (3D) printing system for preparing an object made at least partially of an expanded polymer including: a printing device for transporting and depositing a strand of expanded polymer including a blowing agent onto a surface and a 3D movement device for adjusting the position of the printing device in a predefined matrix allowing deposit of the strand of expanded polymer at a predetermined time and precise position within the matrix, the printing device includes: a feed section, a transporting section, a surface melting section, and a terminal printing head section for depositing the expanded polymer strand onto the surface, and all of sections have the same inner diameter, and the surface melting section including a solid-state welding element, a laser beam, a generator of hot gas or liquid and/or a generator of heat.Type: GrantFiled: August 21, 2019Date of Patent: April 16, 2024Assignee: SULZER MANAGEMENT AGInventors: Stephen Shields, Daniele Tammaro, Ulla Trommsdorff, Claudio Walker
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Publication number: 20240065318Abstract: The present disclosure relates to aerosol delivery devices and related methods of delivering aerosol to a user. The aerosol delivery devices may include a housing providing multiple aerosol pathways having a mouth-end opening through which aerosol can be inhaled by a user, the housing defining a first aerosol delivery pathway in fluid communication with the mouth-end opening and a second aerosol delivery pathway separate from the first aerosol delivery pathway and in fluid communication with the mouth-end opening. An atomizer including a heating element or piezoelectric element and a liquid transport element in fluid communication with an aerosol precursor composition is provided in fluid communication with the first aerosol delivery pathway. A flavorant-infused material is positioned within the second aerosol delivery pathway and adapted to produce a second aerosol upon contact between the flavorant-infused material and flowing air.Type: ApplicationFiled: October 18, 2023Publication date: February 29, 2024Inventors: Sawyer Hubbard, Eric Taylor Hunt, Karen V. Taluskie, Stephen Benson Sears, Donna Walker Duggins, Michael F. Davis
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Publication number: 20240017214Abstract: A portable filtration system is described. The system may comprise: a mixing portion, comprising: a pump adaptor and a contaminant regulator. The pump adaptor may comprise: an upper plate, a lower plate, and a screen. The screen may axially extend between the upper and lower plates, wherein the upper plate, the lower plate, and the screen define a channel of a mixing chamber. The contaminant regulator may comprise a through-passage coupled to the upper plate, wherein the through-passage is in fluid communication with the mixing chamber.Type: ApplicationFiled: September 29, 2023Publication date: January 18, 2024Applicant: Government of the United States, as represented by the Secretary of the ArmyInventors: Michael Jeffrey Anderson, Jeremy Stephen Walker, James Saye Dusenbury, IV
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Patent number: 11861481Abstract: Methods, systems, and apparatus, including computer programs encoded on computer storage media, for searching an autonomous vehicle sensor data repository. One of the methods includes maintaining a collection of sensor samples and, for each sensor sample, an embedding of the sensor sample; receiving a request specifying a query sensor sample, wherein the query sensor sample characterizes a query environment region; and identifying, from the collection of sensor samples, a plurality of relevant sensor samples that characterize similar environment regions to the query environment region, comprising: processing the query sensor sample through the embedding neural network to generate a query embedding; and identifying, from sensor samples in a subset of the sensor samples in the collection, a plurality of sensor samples that have embeddings that are closest to the query embedding.Type: GrantFiled: December 23, 2019Date of Patent: January 2, 2024Assignee: Waymo LLCInventors: Zijian Guo, Nichola Abdo, Junhua Mao, Congcong Li, Edward Stephen Walker, Jr.
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Patent number: 11806667Abstract: A portable filtration system is described. The system may comprise: a mixing portion, comprising: a pump adaptor and a contaminant regulator. The pump adaptor may comprise: an upper plate, a lower plate, and a screen. The screen may axially extend between the upper and lower plates, wherein the upper plate, the lower plate, and the screen define a channel of a mixing chamber. The contaminant regulator may comprise a through-passage coupled to the upper plate, wherein the through-passage is in fluid communication with the mixing chamber.Type: GrantFiled: April 5, 2021Date of Patent: November 7, 2023Assignee: GOVERNMENT OF THE UNITED STATES, AS REPRESENTED BY THE SECRETARY OF THE ARMYInventors: Michael Jeffrey Anderson, Jeremy Stephen Walker, James Saye Dusenbury, IV
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Patent number: 11732437Abstract: This description provides an autonomous or semi-autonomous excavation vehicle that is capable of navigating through a dig site and carrying out an excavation routine using a system of sensors physically mounted to the excavation vehicle. The sensors collects any one or more of spatial, imaging, measurement, and location data representing the status of the excavation vehicle and its surrounding environment. Based on the collected data, the excavation vehicle executes instructions to carry out an excavation routine. The excavation vehicle is also able to carry out numerous other tasks, such as checking the volume of excavated earth in an excavation tool, and helping prepare a digital terrain model of the site as part of a process for creating the excavation routine.Type: GrantFiled: July 27, 2022Date of Patent: August 22, 2023Assignee: BUILT ROBOTICS INC.Inventors: Noah Austen Ready-Campbell, Andrew Xiao Liang, Linus Page Chou, Edward Stephen Walker, Christian John Wawrzonek, Cyrus McMann Ready-Campbell
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Patent number: 11668070Abstract: This description provides an autonomous or semi-autonomous excavation vehicle that is capable of navigating through a dig site and carrying out an excavation routine using a system of sensors physically mounted to the excavation vehicle. The sensors collect any one or more of spatial, imaging, measurement, and location data representing the status of the excavation vehicle and its surrounding environment. Based on the collected data, the excavation vehicle executes instructions to carry out an excavation routine. The excavation vehicle is also able to carry out numerous other tasks, such as checking the volume of excavated earth in an excavation tool and helping prepare a digital terrain model of the site as part of a process for creating the excavation routine.Type: GrantFiled: December 29, 2020Date of Patent: June 6, 2023Assignee: BUILT ROBOTICS INC.Inventors: Noah Austen Ready-Campbell, Andrew Xiao Liang, Linus Page Chou, Edward Stephen Walker, Jr., Christian John Wawrzonek, Cyrus McMann Ready-Campbell
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Patent number: 11634883Abstract: This description provides an autonomous or semi-autonomous excavation vehicle that is capable of navigating through a dig site and carrying out an excavation routine using a system of sensors physically mounted to the excavation vehicle. The sensors collects any one or more of spatial, imaging, measurement, and location data representing the status of the excavation vehicle and its surrounding environment. Based on the collected data, the excavation vehicle executes instructions to carry out an excavation routine. The excavation vehicle is also able to carry out numerous other tasks, such as checking the volume of excavated earth in an excavation tool, and helping prepare a digital terrain model of the site as part of a process for creating the excavation routine.Type: GrantFiled: November 18, 2020Date of Patent: April 25, 2023Assignee: BUILT ROBOTICS INC.Inventors: Noah Austen Ready-Campbell, Andrew Xiao Liang, Linus Page Chou, Edward Stephen Walker, Christian John Wawrzonek, Cyrus McMann Ready-Campbell
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Publication number: 20230099920Abstract: Methods, systems, and apparatus, including computer programs encoded on computer storage media, for training a classifier to detect open vehicle doors. One of the methods includes obtaining a plurality of initial training examples, each initial training example comprising (i) a sensor sample from a collection of sensor samples and (ii) data classifying the sensor sample as characterizing a vehicle that has an open door; generating a plurality of additional training examples, comprising, for each initial training example: identifying, from the collection of sensor samples, one or more additional sensor samples that were captured less than a threshold amount of time before the sensor sample in the initial training example was captured; and training the machine learning classifier on first training data that includes the initial training examples and the additional training examples to generate updated weights for the machine learning classifier.Type: ApplicationFiled: November 28, 2022Publication date: March 30, 2023Inventors: Junhua Mao, Lo Po Tsui, Congcong Li, Edward Stephen Walker, JR.
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Publication number: 20230072020Abstract: Methods, systems, and apparatus, including computer programs encoded on a computer storage medium, for open vehicle doors prediction using a neural network model. One of the methods includes: obtaining sensor data (i) that includes a portion of a point cloud generated by a laser sensor of an autonomous vehicle and (ii) that characterizes a vehicle that is in a vicinity of the autonomous vehicle in an environment; and processing the sensor data using an open door prediction neural network to generate an open door prediction that predicts a likelihood score that the vehicle has an open door.Type: ApplicationFiled: September 8, 2022Publication date: March 9, 2023Inventors: Andre Liang Cornman, David Lee, Yang Song, Zijian Guo, Edward Stephen Walker, Jr., Yuanfang Wang, Zhengli Zhao, Hsu-kuang Chiu
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Publication number: 20230058214Abstract: The invention provides compositions and methods for identifying autism and autism spectrum disorders in humans. The invention also includes compositions and methods for identifying unique blood-based gene expression profiles in children with regressive autism spectrum disorder (ASD) and ileocolitis.Type: ApplicationFiled: December 22, 2021Publication date: February 23, 2023Inventors: Arthur Krigsman, Stephen WALKER
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Patent number: 11514310Abstract: Methods, systems, and apparatus, including computer programs encoded on computer storage media, for training a classifier to detect open vehicle doors. One of the methods includes obtaining a plurality of initial training examples, each initial training example comprising (i) a sensor sample from a collection of sensor samples and (ii) data classifying the sensor sample as characterizing a vehicle that has an open door; generating a plurality of additional training examples, comprising, for each initial training example: identifying, from the collection of sensor samples, one or more additional sensor samples that were captured less than a threshold amount of time before the sensor sample in the initial training example was captured; and training the machine learning classifier on first training data that includes the initial training examples and the additional training examples to generate updated weights for the machine learning classifier.Type: GrantFiled: December 21, 2018Date of Patent: November 29, 2022Assignee: Waymo LLCInventors: Junhua Mao, Lo Po Tsui, Congcong Li, Edward Stephen Walker, Jr.
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Publication number: 20220366263Abstract: Methods, systems, and apparatus, including computer programs encoded on a computer storage medium, for training a student machine learning model using a teacher machine learning model that has a pre-trained feature extractor.Type: ApplicationFiled: May 6, 2021Publication date: November 17, 2022Inventors: Ming Ji, Edward Stephen Walker, JR., Yang Song, Zijian Guo, Congcong Li
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Publication number: 20220364321Abstract: This description provides an autonomous or semi-autonomous excavation vehicle that is capable of navigating through a dig site and carrying out an excavation routine using a system of sensors physically mounted to the excavation vehicle. The sensors collects any one or more of spatial, imaging, measurement, and location data representing the status of the excavation vehicle and its surrounding environment. Based on the collected data, the excavation vehicle executes instructions to carry out an excavation routine. The excavation vehicle is also able to carry out numerous other tasks, such as checking the volume of excavated earth in an excavation tool, and helping prepare a digital terrain model of the site as part of a process for creating the excavation routine.Type: ApplicationFiled: July 27, 2022Publication date: November 17, 2022Inventors: Noah Austen Ready-Campbell, Andrew Xiao Liang, Linus Page Chou, Edward Stephen Walker, Christian John Wawrzonek, Cyrus McMann Ready-Campbell
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Publication number: 20220314168Abstract: A portable filtration system is described. The system may comprise: a mixing portion, comprising: a pump adaptor and a contaminant regulator. The pump adaptor may comprise: an upper plate, a lower plate, and a screen. The screen may axially extend between the upper and lower plates, wherein the upper plate, the lower plate, and the screen define a channel of a mixing chamber. The contaminant regulator may comprise a through-passage coupled to the upper plate, wherein the through-passage is in fluid communication with the mixing chamber.Type: ApplicationFiled: April 5, 2021Publication date: October 6, 2022Applicant: Government of the United States, as represented by the Secretary of the ArmyInventors: James Saye Dusenbury, Jeremy Stephen Walker, Michael Jeffrey Anderson
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Patent number: 11441186Abstract: The invention provides compositions and methods for identifying autism and autism spectrum disorders in humans. The invention also includes compositions and methods for identifying unique gene expression profiles in children with regressive autism spectrum disorder (ASD) and ileocolitis.Type: GrantFiled: March 11, 2019Date of Patent: September 13, 2022Assignee: Wake Forest University Health SciencesInventors: Stephen Walker, Arthur Krigsman
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Patent number: 11441291Abstract: This description provides an autonomous or semi-autonomous excavation vehicle that is capable of navigating through a dig site and carrying out an excavation routine using a system of sensors physically mounted to the excavation vehicle. The sensors collects any one or more of spatial, imaging, measurement, and location data representing the status of the excavation vehicle and its surrounding environment. Based on the collected data, the excavation vehicle executes instructions to carry out an excavation routine. The excavation vehicle is also able to carry out numerous other tasks, such as checking the volume of excavated earth in an excavation tool, and helping prepare a digital terrain model of the site as part of a process for creating the excavation routine.Type: GrantFiled: April 10, 2020Date of Patent: September 13, 2022Assignee: BUILT ROBOTICS INC.Inventors: Noah Austen Ready-Campbell, Andrew Xiao Liang, Linus Page Chou, Edward Stephen Walker, Jr., Christian John Wawrzonek, Cyrus McMann Ready-Campbell
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Patent number: 11248268Abstract: The invention provides compositions and methods for identifying autism and autism spectrum disorders in humans. The invention also includes compositions and methods for identifying unique blood-based gene expression profiles in children with regressive autism spectrum disorder (ASD) and ileocolitis.Type: GrantFiled: March 24, 2017Date of Patent: February 15, 2022Assignees: Wake Forest University Health SciencesInventors: Arthur Krigsman, Stephen Walker