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).
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Publication number: 20240336781Abstract: 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: ApplicationFiled: April 5, 2024Publication date: October 10, 2024Applicant: HOYA Optical Labs of America, Inc.Inventors: Hannah Vu, Jeffrey Brown, David Olund, Vikas Parakh
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Publication number: 20240308115Abstract: An optical lens casting gasket, wafer, and system and method that provides for more efficient formation of optical lenses employing optically functional wafers.Type: ApplicationFiled: May 21, 2024Publication date: September 19, 2024Applicant: HOYA Optical Labs of America, Inc.Inventors: David Olund, Sarawuth Seewattanangkoon, Hannah Vu, Ladawan Chantharadet, Pasin Pudsayapong, Harjit Bhambra, Jeff Brown, Richard Blacker
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Patent number: 12085563Abstract: 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: GrantFiled: December 20, 2019Date of Patent: September 10, 2024Assignee: Kenota Inc.Inventors: Christopher J. Harder, David Andrew McMullin, Eric Blondeel, Kien Vu
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Patent number: 12074321Abstract: 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: GrantFiled: August 21, 2020Date of Patent: August 27, 2024Assignee: 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
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Patent number: 12048485Abstract: 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: GrantFiled: April 4, 2022Date of Patent: July 30, 2024Assignee: RAYTRX, LLCInventors: 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
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Patent number: 11634653Abstract: 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: GrantFiled: November 10, 2020Date of Patent: April 25, 2023Assignee: Kamterter Products, LLCInventors: John Alvin Eastin, David Vu
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Publication number: 20220090784Abstract: 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: ApplicationFiled: December 7, 2021Publication date: March 24, 2022Inventors: John Alvin Eastin, David Vu
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Patent number: 11229876Abstract: 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: GrantFiled: October 4, 2018Date of Patent: January 25, 2022Assignee: KAMTERTER PRODUCTS, LLCInventors: John Alvin Eastin, David Vu
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Patent number: 11089809Abstract: 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: GrantFiled: May 7, 2018Date of Patent: August 17, 2021Assignee: Kamterter Products, LLCInventors: John Alvin Eastin, David Vu
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Publication number: 20210071097Abstract: 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: ApplicationFiled: November 10, 2020Publication date: March 11, 2021Applicant: Kamterter Products, LLCInventors: John Alvin Eastin, David Vu
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Patent number: 10876060Abstract: 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: GrantFiled: November 22, 2017Date of Patent: December 29, 2020Assignee: Kamterter Products, LLCInventors: John Alvin Eastin, David Vu
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Publication number: 20200401653Abstract: 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: ApplicationFiled: June 24, 2019Publication date: December 24, 2020Inventors: George S. Cembrowski, David Vu Tran
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Patent number: 10667457Abstract: 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: GrantFiled: November 20, 2017Date of Patent: June 2, 2020Assignee: Kamterter Products, LLCInventors: John Alvin Eastin, David Vu
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Patent number: 10081805Abstract: 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: GrantFiled: October 10, 2016Date of Patent: September 25, 2018Assignee: KamTec, LLCInventors: Henry Yokoyama, James H. H. Chan, Paul S. Oyama, Loren J. Hov, Christopher Lee Petersen, David Vu, John A. Eastin
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Publication number: 20180251693Abstract: 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: ApplicationFiled: November 22, 2017Publication date: September 6, 2018Inventors: John Alvin Eastin, David Vu
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Publication number: 20180153206Abstract: 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: ApplicationFiled: November 8, 2017Publication date: June 7, 2018Inventors: John Alvin Eastin, David Vu
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Publication number: 20180070529Abstract: 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: ApplicationFiled: November 20, 2017Publication date: March 15, 2018Inventors: John Alvin Eastin, David Vu
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Patent number: 9820426Abstract: 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: GrantFiled: October 5, 2015Date of Patent: November 21, 2017Assignee: Kamterter Products, LLCInventors: John Alvin Eastin, David Vu
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Patent number: 9464283Abstract: 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: GrantFiled: March 15, 2013Date of Patent: October 11, 2016Assignee: KamTec, LLCInventors: Henry Yokoyama, James H. H. Chan, Paul S. Oyama, Loren J. Hov, Christopher Lee Petersen, David Vu, John A. Eastin
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Patent number: 9148994Abstract: 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: GrantFiled: November 12, 2012Date of Patent: October 6, 2015Assignee: Kamterter Products, LLCInventors: John Alvin Eastin, David Vu