Patents by Inventor David Walker

David 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: 20260042253
    Abstract: Highly dispersed, highly filled, low viscosity liquid compositions and uses thereof. A composition can include a carrier fluid, a plurality of nano- and micro-sized particles, and multiple dispersants. A carrier fluid can comprise nonpolar organic liquids. A plurality of particles can comprise inorganic particles. A portion of dispersants can exhibit different association affinities for nano-versus micro-sized particles. A composition can be free of water, other solvents, or diluents. A composition can comprise 30 weight % or greater of particles. A composition can exhibit a consistent viscosity of about 1000 centipoise or lower at about 25° C. A curable composition can comprise curable carrier fluids, such as, for example, monomers and/or oligomers. A composition can be utilized in chemical processing, microfluidics, colloidal fluids, 3D printing, coatings, and other types of additive manufacturing. An object can be made, for example, by vat polymerization 3D printing of one or more curable composition(s).
    Type: Application
    Filed: August 18, 2023
    Publication date: February 12, 2026
    Inventors: Philip Oweimrin, James Hedrick, Richard Schmidt, David Walker
  • Publication number: 20260027779
    Abstract: The present technology provides methods for varying physical properties in 3D printed products from a single resin composition, a single printing process, and a single curing process. An image stack used during the 3D printing process controls the position and intensity of light administered by a light source. The image stacks control an intensity of light to be used on different regions of the resin pool at different points in time to induce higher levels of polymerization in certain regions and lower levels of polymerization in other regions. Regions exposed to higher intensities of light will achieve a higher percent cure compared to regions exposed to lower intensities of light. The higher percent cure in a given region in a product will result in different physical properties after a post-print curing process when compared to a given region in the product with a lower percent cure.
    Type: Application
    Filed: July 28, 2023
    Publication date: January 29, 2026
    Inventors: Richard Schmidt, James Hedrick, David Walker
  • Patent number: 12513434
    Abstract: The present invention generally relates to pulse capture electronics (PCE) of an imaging system that provides the ability to interface with, control, and test Read-Out Integrated Circuits (ROIC), and communicate the image data to a computing device for rendering and/or computational processing. The RIS-DC includes a single board signal processing architecture that is combined with a processor board to enable various operational requirements and varying ROICs to be configured to produce an operational imaging system.
    Type: Grant
    Filed: January 17, 2024
    Date of Patent: December 30, 2025
    Assignee: United States of America as represented by the Secretary of the Air Force
    Inventors: Mohammad Vakil, Marc Hoffman, DeJuan Daniels, David Walker
  • Publication number: 20250296285
    Abstract: The technology described herein provides methods and devices to manage process flows and support systems for 3D printing. The technology provides methods and devices for separating contaminants in 3D printing fluids. The technology provides methods and devices for aligning projectors with six degrees of freedom in 3D printers. The technology provides methods and devices to cause the flow of an immiscible liquid under an interface with liquid resin in a 3D printer liquid vat to be laminar, of proper height, and of appropriate flow rate to remove heat. The technology provides methods and devices to provide feedback loops for a three-dimensional printing process that uses a flow of oil under a liquid resin to control heat in the printing process.
    Type: Application
    Filed: March 21, 2023
    Publication date: September 25, 2025
    Inventors: Kanan Wanha, Juan Fernandez, Edward Cottiss, Katie Shi, David Lehman, Eric Potempa, Elvin Garayev, James Hedrick, Michael Flynn, Matthew Hildner, David Walker
  • Publication number: 20250234112
    Abstract: The present invention generally relates to pulse capture electronics (PCE) of an imaging system that provides the ability to interface with, control, and test Read-Out Integrated Circuits (ROIC), and communicate the image data to a computing device for rendering and/or computational processing. The RIS-DC includes a single board signal processing architecture that is combined with a processor board to enable various operational requirements and varying ROICs to be configured to produce an operational imaging system.
    Type: Application
    Filed: January 17, 2024
    Publication date: July 17, 2025
    Inventors: Mohammad Vakil, Marc Hoffman, DeJuan Daniels, David Walker
  • Publication number: 20250208619
    Abstract: The present invention provides a system for remote vehicle operation by human pilot and artificial intelligence systems. The system comprises: a vehicle capable of movement, a human operator and control station situated outside of the vehicle in a remote location, a bidirectional wireless communications channel, which transmits commands from the control station to the vehicle and which receives information related to the vehicle's state and its environment from the vehicle, and a human interface device conveying information to the human operator and receiving inputs.
    Type: Application
    Filed: October 19, 2022
    Publication date: June 26, 2025
    Inventors: Kristoffer FREY, Yiou HE, Gregor MCMILLAN, Jacob Reinier MAAT, David WALKER, Haofeng XU
  • Publication number: 20250196443
    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 impelementation of patterning modules of the array. Implementaion of the array can be controlled by a sensory feed-back.
    Type: Application
    Filed: February 27, 2025
    Publication date: June 19, 2025
    Inventors: David WALKER, Michael FLYNN, Jay VALDILLEZ
  • Publication number: 20250161427
    Abstract: Immunoreactive engineered polypeptides are provided. The engineered polypeptides can be used to diagnose or induce an immune response against E. chaffeensis or E. canis.
    Type: Application
    Filed: January 29, 2025
    Publication date: May 22, 2025
    Applicant: Research Development Foundation
    Inventors: Jere McBRIDE, David WALKER
  • Patent number: 12263646
    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: August 30, 2022
    Date of Patent: April 1, 2025
    Assignee: Azul 3D, Inc.
    Inventors: David Walker, Michael Flynn, Jay Valdillez
  • Publication number: 20250099831
    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 9, 2024
    Publication date: March 27, 2025
    Inventors: Dale TIMM, Mike CASSIANO, Troy L. PARISH, David WALKER
  • Patent number: 12226468
    Abstract: Immunoreactive engineered polypeptides are provided. The engineered polypeptides can be used to diagnose or induce an immune response against E. chaffeensis or E. canis.
    Type: Grant
    Filed: June 26, 2024
    Date of Patent: February 18, 2025
    Assignee: Research Development Foundation
    Inventors: Jere McBride, David Walker
  • Patent number: 12194359
    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: May 19, 2023
    Date of Patent: January 14, 2025
    Assignee: FLAGD GOLF, INC.
    Inventors: Dale Timm, Mike Cassiano, Troy L Parish, David Walker
  • Publication number: 20240424075
    Abstract: Immunoreactive engineered polypeptides are provided. The engineered polypeptides can be used to diagnose or induce an immune response against E. chaffeensis or E. canis.
    Type: Application
    Filed: June 26, 2024
    Publication date: December 26, 2024
    Applicant: Research Development Foundation
    Inventors: Jere McBRIDE, David WALKER
  • Publication number: 20240011000
    Abstract: Disclosed are recombinant fusion proteins comprising a villin headpiece HP47 domain and a heterologous protein domain, such as, for example, a nucleic acid polymerase. Also disclosed are nucleic acids (e.g., DNA constructs) encoding the fusion protein, expression vectors and recombinant host cells for expression of the fusion protein, and methods of using the recombinant fusion proteins.
    Type: Application
    Filed: September 15, 2021
    Publication date: January 11, 2024
    Inventors: Andrew ELLINGTON, Inyup PAIK, Andre MARANHAO, Sanchita BHADRA, David WALKER, Phuoc NGO, Daniel DIAZ
  • Publication number: 20230285829
    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: May 19, 2023
    Publication date: September 14, 2023
    Inventors: Dale TIMM, Mike CASSIANO, Troy L. PARISH, David WALKER
  • Publication number: 20230255799
    Abstract: Disclosed herein are joint implants and methods for tracking joint implant performance. A method for monitoring a joint implant performance may include coupling a first implant to a first bone of a joint, the first implant including at least one magnetic marker. Coupling a second implant to a second bone of the joint, the second implant including at least one magnetic sensor to detect a position of the magnetic marker. Performing a first joint stress test to measure a baseline joint stability value, the baseline joint stability value being generated by the at least one magnetic sensor. Performing a second joint stress test to measure a second joint stability value, the second joint stability value being generated by the at least one magnetic sensor. Determining joint stability of the joint by comparing the baseline joint stability value to the second joint stability value.
    Type: Application
    Filed: March 14, 2023
    Publication date: August 17, 2023
    Inventors: Matthias Verstraete, David Walker, Jillian Tuliebitz, Carlos O. Alva
  • Publication number: 20230211225
    Abstract: Distance display systems and methods are included which may be used to display an accurate range from a cup of a golf hole to a plurality of tee hitting positions.
    Type: Application
    Filed: December 27, 2022
    Publication date: July 6, 2023
    Inventors: Dale TIMM, Troy L. PARISH, Michael Henry BORK, Mike CASSIANO, David WALKER
  • Patent number: 11691064
    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: December 22, 2021
    Date of Patent: July 4, 2023
    Assignee: FLAGD Golf, Inc.
    Inventors: Dale Timm, Mike Cassiano, Troy L. Parish, David Walker
  • 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: 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