Patents by Inventor David A. Walker

David A. 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).

  • Publication number: 20230040959
    Abstract: The present invention provides, in various embodiments, genetically modified aerobic bacteria, polynucleotides and methods for expressing and/or harvesting electrically conductive protein nanowires (e-PNs). The present invention also provides e-PNs produced using the genetically modified aerobic bacteria, polynucleotides and methods.
    Type: Application
    Filed: November 20, 2020
    Publication date: February 9, 2023
    Inventors: Derek R. Lovley, Toshiyuki Ueki, David Walker, Trevor Woodard, Kelly Nevin Lovley
  • Publication number: 20230040818
    Abstract: Methods and apparatus comprising a dewetting phase and a polymerization liquid that are immiscible, and can be used for the formation of three-dimensional objects, wherein the method does not require a dead zone. Additionally, methods and apparatus that employ an optically transparent cooling apparatus to mitigate heat generated during the fabrication process, and the use of a mobile phase to provide a shearing interface to reduce interfacial adhesive forces.
    Type: Application
    Filed: September 6, 2022
    Publication date: February 9, 2023
    Inventors: Chad A. Mirkin, David A. Walker, James L. Hedrick, III
  • Patent number: 11572030
    Abstract: An inflator assembly arranged in an airbag system for use in a vehicle includes an elongated inflator with at least one mounting stud for mounting the inflator assembly in the vehicle and a gas deflector having a back plate and a front cover with at least one opening to diffuse gas generated from the inflator. The front cover is slid on the back plate along a longitudinal axis of the inflator such that the front cover is slidably engaged with the back plate to enclose a portion of the inflator. Further, the front cover and the back plate are securely engaged with each other by a crimp process to prevent opening or deforming of the gas deflector.
    Type: Grant
    Filed: September 8, 2021
    Date of Patent: February 7, 2023
    Assignee: AUTOLIV ASP, INC.
    Inventors: David Walker Parkinson, Matt Cox, Louis A. Mueller, Nathaniel Lee Gerlach, Terry Alan Wheelwright
  • Publication number: 20220410491
    Abstract: Devices, systems, and/or methodologies are provided for three dimensional printing, for example, additive manufacturing, wherein an array of energy patterning (e.g., light patterning) modules are used in conjunction with an automated positional control system to coordinate implementation of patterning modules of the array. Implementation of the array can be controlled by a sensory feed-back.
    Type: Application
    Filed: August 30, 2022
    Publication date: December 29, 2022
    Inventors: David WALKER, Michael FLYNN, Jay VALDILLEZ
  • Patent number: 11526911
    Abstract: A method comprises providing an interface permitting a first user to control activation of a mobile information channel through which the first user can share access to content with a plurality of additional users, activating the mobile information channel responsive to input received from the first user via the interface, inserting content provided by the first user into the mobile information channel, receiving additional content relating to the mobile information channel from one or more of said additional users via one or more respective mobile devices associated with at least one wireless network, inserting at least a portion of the additional content into the mobile information channel, and integrating into the mobile information channel information associated with at least one wireless networking functionality of said at least one wireless network.
    Type: Grant
    Filed: October 13, 2020
    Date of Patent: December 13, 2022
    Assignee: Mobile Data Technologies LLC
    Inventors: David Walker Harper, Jason James Sabella, William Henry Munch
  • Publication number: 20220373130
    Abstract: A compliant railing bracket system in which useful or decorative items may be attached to various structural members without the use of fasteners, while utilizing a snap-fit method. The design utilizes a geometric configuration such that the bracket encompasses 3 faces of a rectangular structural member utilizing a cantilever snap-lock geometry to engage with the 4th face creating a secure snap-fit junction. The bracket system may include modular attachment points such as dovetails or come as a pre-formed body with accommodations for various useful items such as flower box brackets, flower pots, solar light mounts, hooks, pegs, rings, tools and utensils.
    Type: Application
    Filed: May 16, 2021
    Publication date: November 24, 2022
    Inventor: Ryan David Walker
  • Publication number: 20220353618
    Abstract: An actuator module includes a baseplate extending in a plane, a voice coil connected to the baseplate, and a magnet assembly. The actuator module also includes a rigid frame attached to the baseplate, the rigid frame comprising four stubs. The actuator module further includes a pair of springs suspending the magnet assembly relative to the frame and baseplate so that the voice coil extends into the air gap, the pair of springs including a first and second spring each shaped as a loop defining an aperture sized to accommodate motion of the magnet assembly along a direction of the coil axis, the first spring being attached to the frame at a first pair of the four stubs, the second spring being attached to the frame at a second pair of the four stubs, and both being attached to separate portions of the magnet assembly.
    Type: Application
    Filed: July 23, 2020
    Publication date: November 3, 2022
    Inventors: Jason David Walker, Timothy A. Gladwin, Rajiv Bernard Gomes
  • Patent number: 11472119
    Abstract: Devices, systems, and/or methodologies are provided for three dimensional printing, for example, additive manufacturing, wherein an array of energy patterning (e.g., light patterning) modules are used in conjunction with an automated positional control system to coordinate implementation of patterning modules of the array. Implementation of the array can be controlled by a sensory feed-back.
    Type: Grant
    Filed: March 30, 2020
    Date of Patent: October 18, 2022
    Assignee: AZUL 3D, INC.
    Inventors: David Walker, Michael Flynn, Jay Valdillez
  • Patent number: 11465339
    Abstract: Methods and apparatus comprising a dewetting phase and a polymerization liquid that are immiscible, and can be used for the formation of three-dimensional objects, wherein the method does not require a dead zone. Additionally, methods and apparatus that employ an optically transparent cooling apparatus to mitigate heat generated during the fabrication process, and the use of a mobile phase to provide a shearing interface to reduce interfacial adhesive forces.
    Type: Grant
    Filed: May 31, 2017
    Date of Patent: October 11, 2022
    Assignee: NORTHWESTERN UNIVERSITY
    Inventors: Chad A. Mirkin, David A. Walker, James L. Hedrick, III
  • Publication number: 20220272457
    Abstract: An actuator module includes a base plate extending in a plane, a voice coil connected to the base plate, and a magnet assembly that includes a back side facing the base plate and a front side facing away from the base plate. The magnet assembly includes a base layer and sidewalls defining a cup and an inner element including a center magnet mounted within the cup. The sidewalls include a first and second pair of sidewalls. The actuator module includes a rigid frame attached to the base plate, the rigid frame including four stubs. The actuator module also includes a plurality of springs suspending the magnet assembly relative to the frame and base plate, the plurality of springs including a first spring attached to the frame at a first pair of the four stubs and a second spring attached to the frame at a second pair of the four stubs.
    Type: Application
    Filed: July 31, 2019
    Publication date: August 25, 2022
    Inventors: Neil John Harris, Timothy A. Gladwin, Rajiv Bernard Gomes, Anthony King, Jason David Walker
  • Patent number: 11415877
    Abstract: Disclosed herein are methods of using a fluoro oil mask to prepare a beam pen lithography pen array.
    Type: Grant
    Filed: December 7, 2017
    Date of Patent: August 16, 2022
    Assignee: NORTHWESTERN UNIVERSITY
    Inventors: Chad A. Mirkin, David A. Walker, James L. Hedrick, III
  • Patent number: 11394636
    Abstract: Systems and methods are described to provide mechanisms for establishing a private anonymity network that allows network packets to be forwarded via an obfuscated network signal path that is highly configurable. The techniques described herein may allow users to establish a private obfuscated network signal path that utilizes a number of access points, load balancers, and packet forwarders that can collectively provide path randomization and node ephemerality in a manner that may not be feasible or available in public anonymity networks.
    Type: Grant
    Filed: December 10, 2020
    Date of Patent: July 19, 2022
    Assignee: AMAZON TECHNOLOGIES, INC.
    Inventors: David Walker, Andrew Langhorn
  • Publication number: 20220193988
    Abstract: Methods and apparatus comprising a dewetting material and a polymerization liquid that are immiscible and dewetting, and can be used for the formation of three-dimensional objects, wherein the method does not require a dead zone. Additionally, methods and apparatus that employ the use of a flowing dewetting material to provide a shearing interface to reduce interfacial adhesive forces.
    Type: Application
    Filed: March 9, 2020
    Publication date: June 23, 2022
    Inventors: David A. Walker, James L. Hedrick, III, Chad A. Mirkin
  • Publication number: 20220111280
    Abstract: Distance measuring devices and methods are included which may be used to measure and simultaneously display an accurate range of multiple targets such as the flags of a golf practice driving range.
    Type: Application
    Filed: December 22, 2021
    Publication date: April 14, 2022
    Inventors: Dale TIMM, Mike CASSIANO, Troy L. PARISH, David WALKER
  • Patent number: 11292187
    Abstract: Methods and apparatus comprising a dewetting phase and a polymerization liquid that are immiscible, and can be used for the formation of three-dimensional objects, wherein the method does not require a dead zone. Additionally, methods and apparatus that employ an optically transparent cooling apparatus to mitigate heat generated during the fabrication process, and the use of a mobile phase to provide a shearing interface to reduce interfacial adhesive forces.
    Type: Grant
    Filed: October 30, 2020
    Date of Patent: April 5, 2022
    Assignee: NORTHWESTERN UNIVERSITY
    Inventors: Chad A. Mirkin, David A. Walker, James L. Hedrick, III
  • Patent number: 11235222
    Abstract: Distance measuring devices and methods are included which may be used to measure and simultaneously display an accurate range of multiple targets such as the flags of a golf practice driving range.
    Type: Grant
    Filed: September 28, 2020
    Date of Patent: February 1, 2022
    Assignee: FlagD, LLC
    Inventors: Dale Timm, Mike Cassiano, Troy L. Parish, David Walker
  • Publication number: 20220023641
    Abstract: A magnetic alignment system that can form part of a cochlear implant system. The magnetic alignment system prevents substantial movement of a magnet of an implanted component during an MRI procedure or allows for easy removal of the magnet to facilitate the MRI procedure.
    Type: Application
    Filed: October 4, 2021
    Publication date: January 27, 2022
    Inventors: Peter Gibson, Charles Roger Aaron Leigh, Frank Risi, David Walker
  • Patent number: 11146667
    Abstract: This disclosure describes techniques for a network interface controller (NIC) to communicate over a network according to a specified transmission communication protocol. The NIC receives, from a host processor, an indication of a data unit and an indication of a header template. The NIC generates, independent of the specified transmission communication protocol, metadata for transmitting a segment of the data unit over a network. The NIC generates, at last partly using the metadata, header fields that comply with the specified transmission communication protocol. The NIC processes the header template and the header fields to generate a packet header, and the NIC transmits, over the network, a packet including the packet header and the segment of the data unit.
    Type: Grant
    Filed: November 15, 2019
    Date of Patent: October 12, 2021
    Assignee: Cisco Technology, Inc.
    Inventors: Reese Faucette, David Walker
  • Patent number: 11144196
    Abstract: A facility enabling a user to operate visual user interface controls with ink commands is described. The facility causes to be displayed a control operable with mouse input, and receives an ink command directed to the displayed control. In response, the facility operates the displayed control in accordance with the received ink command.
    Type: Grant
    Filed: December 20, 2019
    Date of Patent: October 12, 2021
    Assignee: Microsoft Technology Licensing, LLC
    Inventors: David Walker Duhon, Yibo Sun, Xiao Tu, Francis Zhou
  • Patent number: 11135440
    Abstract: A magnetic alignment system that can form part of a cochlear implant system. The magnetic alignment system prevents substantial movement of a magnet of an implanted component during an MRI procedure or allows for easy removal of the magnet to facilitate the MRI procedure.
    Type: Grant
    Filed: July 26, 2018
    Date of Patent: October 5, 2021
    Assignee: Cochlear Limited
    Inventors: Peter Gibson, Charles Roger Aaron Leigh, Frank Risi, David Walker