Patents by Inventor David Vu

David Vu 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: 20240336781
    Abstract: An ophthalmic lens including an embedded functional wafer which is coated on one or both sides with a coating layer and methods for fabricating the same. The coating layer may provide adhesion between the functional wafer and the surrounding resin used to form the lens. The coating layer may also protect the functional wafer from degradation during fabrication, such as due to chemical attack or exposure to heat during thermoforming. The coating layer may be applied to a flat functional sheet and then subsequently formed into a curvature to match the lens, or the coating layer may be applied to an already-curved functional wafer. The coating layer may comprise various compositions known to provide adhesion, protection from heat, and/or protection from chemicals.
    Type: Application
    Filed: April 5, 2024
    Publication date: October 10, 2024
    Applicant: HOYA Optical Labs of America, Inc.
    Inventors: Hannah Vu, Jeffrey Brown, David Olund, Vikas Parakh
  • Publication number: 20240308115
    Abstract: An optical lens casting gasket, wafer, and system and method that provides for more efficient formation of optical lenses employing optically functional wafers.
    Type: Application
    Filed: May 21, 2024
    Publication date: September 19, 2024
    Applicant: HOYA Optical Labs of America, Inc.
    Inventors: David Olund, Sarawuth Seewattanangkoon, Hannah Vu, Ladawan Chantharadet, Pasin Pudsayapong, Harjit Bhambra, Jeff Brown, Richard Blacker
  • Patent number: 12085563
    Abstract: Described is a lateral flow high throughput assay device analyzer for preparing and analyzing a plurality of lateral flow assay samples. The analyzer comprises a cartridge stage for supporting an assay cartridge, an elevation adjustment mechanism, and a translation adjustment mechanism for aligning the cartridge stage and assay cartridge relative to a vertical support structure, fluid metering device, and detection device for high throughput lateral flow assay analysis.
    Type: Grant
    Filed: December 20, 2019
    Date of Patent: September 10, 2024
    Assignee: Kenota Inc.
    Inventors: Christopher J. Harder, David Andrew McMullin, Eric Blondeel, Kien Vu
  • Patent number: 12074321
    Abstract: Compounds, particles, and cathode active materials that include lithium, cobalt, manganese, nickel, aluminum, and other elements can be used in lithium ion batteries. The cathode active materials include compounds having the general Formula (I): compound represented by Formula (I): Li?CO1-x-y-zMewMnxNiyAlzO?, as well as Formula (II): Li?CO1-s-u-vMesMntNiuAlyO?.
    Type: Grant
    Filed: August 21, 2020
    Date of Patent: August 27, 2024
    Assignee: Apple Inc.
    Inventors: Hongli Dai, Huiming Wu, Chi-Kai Lin, Michael J. Erickson, Xiaoping Wang, Yan Li, Yanjie Cui, James A. Gilbert, Zhenzhen Yang, Anh D. Vu, Arthur Jeremy Kropf, Hakim H. Iddir, Christopher S. Johnson, John David Carter
  • Patent number: 12048485
    Abstract: An apparatus for obtaining an image of a cornea having a stereomicroscope configured to obtain and display 2D or 3D image content of an eye of a patient, with pupil imaging optics that form a pupil along an optical axis and a shutter configured to form a pattern of one or more apertures for light at the formed pupil. An input prism is configured to direct light to or from the optical axis, with optics configured to convey light along the optical axis to a sensor.
    Type: Grant
    Filed: April 4, 2022
    Date of Patent: July 30, 2024
    Assignee: RAYTRX, LLC
    Inventors: David Kessler, Michael H. Freeman, Mitchael C. Freeman, Simon Prosser, Jordan Boss, Steven Yeager, Cuong Vu, Linda A. Lam, Montgomery Freeman, Steven Von der Porten, Dillon Cornell
  • Patent number: 11634653
    Abstract: A droplet formation for fuels is disclosed. The droplet formation for fuels includes an amphiphile. The droplet formation for fuels further includes at least one of an extensional viscosity modifier and a viscosity modifier. The droplet formation for fuels further includes a hydrophilic portion. The droplet formation for fuels further includes a hydrophobic portion. The droplet, including the hydrophilic portion and the hydrophobic portion, includes characteristics selected for beneficial combustion properties. The selected characteristics include flash point, autoignition temperature, density, viscosity, miscibility, size, combustion temperature, organic properties, inorganic properties, zwitterionic properties, micelle properties, and particulate properties.
    Type: Grant
    Filed: November 10, 2020
    Date of Patent: April 25, 2023
    Assignee: Kamterter Products, LLC
    Inventors: John Alvin Eastin, David Vu
  • Publication number: 20220090784
    Abstract: Delivery mechanisms and distribution mechanisms are varied, adjusted, or modified based on a desired fuel application. Dimensions, flow rates, pressures, viscosities, temperatures, friction parameters, and combinations thereof may be varied, adjusted or modified. The fuel application may include a scrubber application. The scrubber application uses a delivery mechanism to deliver a wet or dry scrubbing agent at a low pressure to a distribution mechanism. The distribution mechanism distributes the scrubbing agent within the scrubbing chamber. The delivery mechanism is adjustable based on properties of a feedstock utilized to deliver the scrubbing agent, properties of a propellant, or properties of the scrubbing application. The distribution mechanism is adjustable based on desired distribution characteristics including shape, size, or velocity of drops, mists, or particles distributed.
    Type: Application
    Filed: December 7, 2021
    Publication date: March 24, 2022
    Inventors: John Alvin Eastin, David Vu
  • Patent number: 11229876
    Abstract: Delivery mechanisms and distribution mechanisms are varied, adjusted, or modified based on a desired fuel application. Dimensions, flow rates, pressures, viscosities, temperatures, friction parameters, and combinations thereof may be varied, adjusted or modified. The fuel application may include a scrubber application. The scrubber application uses a delivery mechanism to deliver a wet or dry scrubbing agent at a low pressure to a distribution mechanism. The distribution mechanism distributes the scrubbing agent within the scrubbing chamber. The delivery mechanism is adjustable based on properties of a feedstock utilized to deliver the scrubbing agent, properties of a propellant, or properties of the scrubbing application. The distribution mechanism is adjustable based on desired distribution characteristics including shape, size, or velocity of drops, mists, or particles distributed.
    Type: Grant
    Filed: October 4, 2018
    Date of Patent: January 25, 2022
    Assignee: KAMTERTER PRODUCTS, LLC
    Inventors: John Alvin Eastin, David Vu
  • Patent number: 11089809
    Abstract: A droplet having an inner portion and an outer portion is formulated using fluid drilling or a pulse dampened pump. The inner portion of the droplet includes higher activity, lability, volatility, miscibility, or solubility, while the outer portion of the droplet includes higher viscosity, increased barrier properties, or controlled-release properties. Surfactants, emulsifying agents, or penetrants may be added to improve delivery, controlled-release, shelf-life, flavor, aroma, texture, or consistency.
    Type: Grant
    Filed: May 7, 2018
    Date of Patent: August 17, 2021
    Assignee: Kamterter Products, LLC
    Inventors: John Alvin Eastin, David Vu
  • Publication number: 20210071097
    Abstract: A droplet formation for fuels is disclosed. The droplet formation for fuels includes an amphiphile. The droplet formation for fuels further includes at least one of an extensional viscosity modifier and a viscosity modifier. The droplet formation for fuels further includes a hydrophilic portion. The droplet formation for fuels further includes a hydrophobic portion. The droplet, including the hydrophilic portion and the hydrophobic portion, includes characteristics selected for beneficial combustion properties. The selected characteristics include flash point, autoignition temperature, density, viscosity, miscibility, size, combustion temperature, organic properties, inorganic properties, zwitterionic properties, micelle properties, and particulate properties.
    Type: Application
    Filed: November 10, 2020
    Publication date: March 11, 2021
    Applicant: Kamterter Products, LLC
    Inventors: John Alvin Eastin, David Vu
  • Patent number: 10876060
    Abstract: A droplet formation for fuels is disclosed. The droplet formation for fuels includes an amphiphile. The droplet formation for fuels further includes at least one of an extensional viscosity modifier and a viscosity modifier. The droplet formation for fuels further includes a hydrophilic portion. The droplet formation for fuels further includes a hydrophobic portion. The droplet, including the hydrophilic portion and the hydrophobic portion, includes characteristics selected for beneficial combustion properties. The selected characteristics include flash point, autoignition temperature, density, viscosity, miscibility, size, combustion temperature, organic properties, inorganic properties, zwitterionic properties, micelle properties, and particulate properties.
    Type: Grant
    Filed: November 22, 2017
    Date of Patent: December 29, 2020
    Assignee: Kamterter Products, LLC
    Inventors: John Alvin Eastin, David Vu
  • Publication number: 20200401653
    Abstract: Discussed herein are systems, methods, and apparatuses for quality control monitoring of laboratory analyzers. A method can include receiving test results from laboratory analyzers, the test results corresponding to a same analyte, determining a standard deviation of differences (SDD) among pairs of the multiple test results, calibrating the laboratory analyzer based on the determined SDD.
    Type: Application
    Filed: June 24, 2019
    Publication date: December 24, 2020
    Inventors: George S. Cembrowski, David Vu Tran
  • Patent number: 10667457
    Abstract: Methods and apparatus for adjusting a delivery, distribution, emission, or spray of an adaptable material include contacting the adaptable material with a compatibly-selected kinetic energy fluid. The contact provides a motive force to move the adaptable material to or from an outlet of a spray fixture. The spray fixture is adjustable to emit various forms of drops, mists, extrusions, emulsions, or fibers. The adjusting is based on characteristics of a feedstock material, the adaptable material, the compatibly-selected kinetic energy fluid, or combinations thereof.
    Type: Grant
    Filed: November 20, 2017
    Date of Patent: June 2, 2020
    Assignee: Kamterter Products, LLC
    Inventors: John Alvin Eastin, David Vu
  • Patent number: 10081805
    Abstract: Bio-regulators from a group of quaternary ammonium moieties modify a gene expression in a plant to induce enhanced growth and robustness. Such bio-regulator may be applied to seeds through coating or encapsulating, to plants through root drenching, spraying and dusting. Bio-regulators may be duel-acting; causing beneficial modification to gene expressions in desirable plants while modifying gene expression in undesirable plants, making them more susceptible to herbicides. Bio-regulators are Ester Compounds, BMIA Compounds or related salts, BMIA Compounds or related salts of those compounds.
    Type: Grant
    Filed: October 10, 2016
    Date of Patent: September 25, 2018
    Assignee: KamTec, LLC
    Inventors: Henry Yokoyama, James H. H. Chan, Paul S. Oyama, Loren J. Hov, Christopher Lee Petersen, David Vu, John A. Eastin
  • Publication number: 20180251693
    Abstract: A droplet formation for fuels is disclosed. The droplet formation for fuels includes an amphiphile. The droplet formation for fuels further includes at least one of an extensional viscosity modifier and a viscosity modifier. The droplet formation for fuels further includes a hydrophilic portion. The droplet formation for fuels further includes a hydrophobic portion. The droplet, including the hydrophilic portion and the hydrophobic portion, includes characteristics selected for beneficial combustion properties. The selected characteristics include flash point, autoignition temperature, density, viscosity, miscibility, size, combustion temperature, organic properties, inorganic properties, zwitterionic properties, micelle properties, and particulate properties.
    Type: Application
    Filed: November 22, 2017
    Publication date: September 6, 2018
    Inventors: John Alvin Eastin, David Vu
  • Publication number: 20180153206
    Abstract: Food applications including seed treatment, planting, pest control, plant health, harvest and desiccation, processing, preservation, flavor enhancement, encapsulation, suspension, emulsion techniques, packaging, shipping, and storage applications incorporate low pressure or low energy processes to emit viscous fluids. Fixtures, applicators, application configurations, and operational parameters and dimensions may be determined, limited, and selected based on a lability characteristic of a feedstock ingredient with respect to a lability reference frame.
    Type: Application
    Filed: November 8, 2017
    Publication date: June 7, 2018
    Inventors: John Alvin Eastin, David Vu
  • Publication number: 20180070529
    Abstract: Methods and apparatus for adjusting a delivery, distribution, emission, or spray of an adaptable material are disclosed. The adaptable material is contacted by a compatibly-selected kinetic energy fluid. The contact provides a motive force to move the adaptable material to or from an outlet of a spray fixture. The spray fixture is adjustable to emit various forms of drops, mists, extrusions, emulsions, or fibers. The adjusting is based on characteristics of a feedstock material, the adaptable material, the compatibly-selected kinetic energy fluid, or combinations thereof.
    Type: Application
    Filed: November 20, 2017
    Publication date: March 15, 2018
    Inventors: John Alvin Eastin, David Vu
  • Patent number: 9820426
    Abstract: Systems, methods, and apparatuses for applying specially formulated spray materials. The feedstock for the spray materials includes one or more immiscible materials. To mix immiscible materials at low pressure, the materials are applied from separate inputs of a fixture to separate channels where they are permitted to flow to and spread over surfaces or edges at selected thicknesses. On the surfaces or edges the materials are each subject to flowing air that forms small particles or drops even though the materials may be viscous. The particles or drops are mixed together and may be applied to a combustion device or spray device or any other device utilizing the mixture.
    Type: Grant
    Filed: October 5, 2015
    Date of Patent: November 21, 2017
    Assignee: Kamterter Products, LLC
    Inventors: John Alvin Eastin, David Vu
  • Patent number: 9464283
    Abstract: Bio-regulators from a group of quaternary ammonium moieties modify a gene expression in a plant to induce enhanced growth and robustness. Such bio-regulator may be applied to seeds through coating or encapsulating, to plants through root drenching, spraying and dusting. Bio-regulators may be duel-acting; causing beneficial modification to gene expressions in desirable plants while modifying gene expression in undesirable plants, making them more susceptible to herbicides. Bio-regulators are Ester Compounds, BMIA Compounds or related salts, BMIA Compounds or related salts of those compounds.
    Type: Grant
    Filed: March 15, 2013
    Date of Patent: October 11, 2016
    Assignee: KamTec, LLC
    Inventors: Henry Yokoyama, James H. H. Chan, Paul S. Oyama, Loren J. Hov, Christopher Lee Petersen, David Vu, John A. Eastin
  • Patent number: 9148994
    Abstract: An apparatus for planting is disclosed. The apparatus includes a nozzle and a delivery tube in communication with the nozzle. The delivery tube includes an auger within the delivery tube. The auger is configured for moving a seed gel mixture through the nozzle. The seed gel mixture includes at least seeds and gel. The apparatus also includes a hopper configured for holding the seed gel mixture, the hopper in communication with the delivery tube.
    Type: Grant
    Filed: November 12, 2012
    Date of Patent: October 6, 2015
    Assignee: Kamterter Products, LLC
    Inventors: John Alvin Eastin, David Vu