Patents by Inventor Dmitry Medvedev

Dmitry Medvedev 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: 20240094117
    Abstract: A method for measuring component concentration in a sample, the method constituted of: passing light through a sample from a first light source to a first light sensor; measuring a first light intensity of light received at the first light sensor; passing light through the sample from a second light source to a second light sensor at the first light intensity; measuring a second light intensity of light received at the second light sensor; determining an adsorption level based on a difference in intensity from light emitted from the first light source and the second light intensity; and calculating a component concentration in the sample based on the adsorption level and a total optical length of light passed between the first light source and sensor and the second light source and sensor.
    Type: Application
    Filed: December 9, 2021
    Publication date: March 21, 2024
    Inventors: Dmitry MEDVEDEV, Roman ILIEV
  • Patent number: 11883551
    Abstract: A sterilization system may include an ozone generator, a buffer chamber, an ozone concentration monitor or cuvette, a treatment chamber, one or more valves, and a controller. The ozone generator generates a flow of ozone. The buffer chamber stores the flow of ozone. The ozone cuvette monitors a concentration of ozone from the buffer chamber. The treatment chamber receives a material for sterilization, and receives a flow of air/ozone. The controller selectively and independently controls each of the valves. The sterilization system including first and second operating modes. In the first operating mode, the treatment chamber is isolated from the ozone generator and the buffer chamber such that ozone is not being supplied to the treatment chamber. In the second operating mode, the treatment chamber is in communication with the ozone generator and the buffer chamber such that ozone is being supplied to the treatment chamber.
    Type: Grant
    Filed: January 30, 2018
    Date of Patent: January 30, 2024
    Assignee: OWS AGRI LIMITED
    Inventors: Dmitry Medvedev, Alex Tsipenyuk
  • Publication number: 20240027336
    Abstract: A sensor for measuring nitric oxide concentration in a sample, the sensor constituted of: an ozone source for oxidizing nitric oxide within a sample to form NO2; and one or more light adsorption measurement systems for determining NO2 levels in the sample in the nitric oxide analyzer before and after oxidizing.
    Type: Application
    Filed: December 9, 2021
    Publication date: January 25, 2024
    Inventors: Dmitry MEDVEDEV, Roman ILIEV, Boris MISLAVSKY
  • Publication number: 20230285927
    Abstract: The present disclosure is related to the field of chemistry and provides methods and devices for stimulation of endothermic reactions in gas phase with high activation barriers by nanosecond pulsed electrical discharge. It can be used for, e.g., CO2 functionalization of methane, H2S dissociation, hydrogen and syngas production, for processing ammonia synthesis and dissociation, etc. Some embodiments include methods and devices associated with the stimulation of plasma chemical reactions with nanosecond pulse electric discharge in the presence of gas flow.
    Type: Application
    Filed: August 4, 2021
    Publication date: September 14, 2023
    Inventors: Dmitry MEDVEDEV, Mikhail MARIN, Evgeny GORELIK, Boris MISLAVSKY, Roman ILIEV
  • Patent number: 11712052
    Abstract: A continuous flow sterilization system includes an inclined treatment chamber having a first end and a second end. An ozone generator generates a flow gas containing ozone; an input opening to receive a bulk material into the treatment chamber. An input port is provided for introducing the flow gas containing of ozone into the treatment chamber. A first sensor measures a level of ozone in the gas output of the treatment chamber. The other sensors measure ozone concentration and temperature within the treatment chamber. An output opening provides an exit for the bulk material. An output port provides an exit for the flow gas. An auger is disposed within the treatment chamber to move the bulk material through the treatment chamber.
    Type: Grant
    Filed: February 9, 2018
    Date of Patent: August 1, 2023
    Assignee: OWS AGRI LIMITED
    Inventor: Dmitry Medvedev
  • Patent number: 11535532
    Abstract: A system for generation of radicals in a liquid (e.g., OH and derivatively H2O2 in water) by a plasma reactor, including a first electrode having a rod shape or a tubular shape; a dielectric tubular housing coaxial with the first electrode and enclosing the first electrode, and having a gap to the first electrode of 0.3-30 mm; a second electrode on an outside of the dielectric tubular housing and coaxial with first electrode with a gap 0.3-30 mm; a high voltage power supply providing voltage oscillations or pulses of 0.5-30 kV and a frequency 1-50 kHz between the first and second electrodes; and a pump or a Venturi injector on an output of the plasma reactor and a chock valve on an input of reactor for generating a low water pressure in the gap between first and second electrodes so as to generate boiling in the gap.
    Type: Grant
    Filed: July 17, 2020
    Date of Patent: December 27, 2022
    Inventor: Dmitry Medvedev
  • Publication number: 20220335638
    Abstract: According to an aspect, a method for depth estimation includes receiving image data from a sensor system, generating, by a neural network, a first depth map based on the image data, where the first depth map has a first scale, obtaining depth estimates associated with the image data, and transforming the first depth map to a second depth map using the depth estimates, where the second depth map has a second scale.
    Type: Application
    Filed: April 19, 2021
    Publication date: October 20, 2022
    Inventors: Abhishek Kar, Hossam Isack, Adarsh Prakash Murthy Kowdle, Aveek Purohit, Dmitry Medvedev
  • Publication number: 20220260484
    Abstract: An apparatus includes an emitter, the emitter comprising an ultraviolet light emitting diode (UV-LED) and being disposed on a first end of a bounded volume suitable for holding a gas. The bounded volume can be a chamber, a room, or the like. The apparatus includes a detector, the detector comprising an ultraviolet light sensor (UV sensor) and being disposed on a second end of the bounded volume, the second end being opposite the first end, wherein the UV-LED comprises a point source, and wherein the emitter generates a parallel beam of light.
    Type: Application
    Filed: May 6, 2022
    Publication date: August 18, 2022
    Applicant: OWS AGRI LIMITED
    Inventor: Dmitry Medvedev
  • Publication number: 20220234899
    Abstract: A system for manufacturing a nanomaterial may include a first electrode; a second electrode spaced apart from the first electrode by a gap; and a chamber configured to enclose the first electrode, the second electrode, and a liquid. The system may also include a power supply configured to provide electrical energy to at least one of the first electrode and the second electrode; and a pump configured to cause the liquid to flow through the gap between the first electrode and the second electrode.
    Type: Application
    Filed: June 5, 2020
    Publication date: July 28, 2022
    Applicant: Nanoplazz Technologies Ltd.
    Inventors: Dmitry MEDVEDEV, Mikhail MARIN, Evgeny GORELIK, Boris MISLAVSKY, Roman ILIEV
  • Patent number: 11366088
    Abstract: A system for determining ozone concentration in ice includes at least one emitter and first and second detectors. The emitter can be a light source including visible and UV light components, or the emitter can be a first emitter for emitting UV light and a second emitter for emitting visible light. The UV and visible light components can be directed through a sample of ice. The transmitted UV and visible light components can be detected by UV and visible light detectors. The amount of UV and visible light received by the detectors can be compared to levels of UV and visible light emitted by the emitter(s) can be used to determine the concentration of a dissolved gas (e.g., ozone) in the sample of ice.
    Type: Grant
    Filed: January 23, 2018
    Date of Patent: June 21, 2022
    Assignee: OWS AGRI LIMITED
    Inventor: Dmitry Medvedev
  • Patent number: 11353395
    Abstract: An apparatus includes an emitter, the emitter comprising an ultraviolet light emitting diode (UV-LED) and being disposed on a first end of a bounded volume suitable for holding a liquid. The liquid may have a negative Langelier saturation index (LSI). The bounded volume can be a chamber, a tank, or the like. The apparatus includes a detector, the detector comprising an ultraviolet light sensor (UV sensor) and being disposed on a second end of the bounded volume, the second end being opposite the first end, wherein the UV-LED comprises a point source, and wherein the emitter generates a parallel beam of light.
    Type: Grant
    Filed: January 23, 2018
    Date of Patent: June 7, 2022
    Assignee: OWS AGRI LIMITED
    Inventor: Dmitry Medvedev
  • Patent number: 11346772
    Abstract: An apparatus includes an emitter, the emitter comprising an ultraviolet light emitting diode (UV-LED) and being disposed on a first end of a bounded volume suitable for holding a gas. The bounded volume can be a chamber, a room, or the like. The apparatus includes a detector, the detector comprising an ultraviolet light sensor (UV sensor) and being disposed on a second end of the bounded volume, the second end being opposite the first end, wherein the UV-LED comprises a point source, and wherein the emitter generates a parallel beam of light.
    Type: Grant
    Filed: January 16, 2018
    Date of Patent: May 31, 2022
    Assignee: OWS AGRI LIMITED
    Inventor: Dmitry Medvedev
  • Patent number: 11231357
    Abstract: An apparatus includes an emitter comprising an ultraviolet light emitting diode (UV-LED) disposed on a first end of an optical cuvette. An extraction cuvette may hold a liquid having a positive Langelier saturation index (LSI), and having a quantity of ozone gas dissolved therein. Air may be bubbled through the liquid in the extraction cuvette, and may then be directed to the optical cuvette. A detector comprising an ultraviolet light sensor (UV sensor) can be disposed on a second end of the optical cuvette. The UV-LED may be a point source, and the emitter may generate a parallel beam of light. A concentration of ozone in the gas in the optical cuvette can be determined based on a diminution of the UV light beam passing therethrough. This concentration can then be used to determine an ozone concentration in the liquid contained in the extraction cuvette.
    Type: Grant
    Filed: January 24, 2018
    Date of Patent: January 25, 2022
    Assignee: OWS AGRI LIMITED
    Inventor: Dmitry Medvedev
  • Publication number: 20210127716
    Abstract: A continuous flow sterilization system includes an inclined treatment chamber having a first end and a second end. An ozone generator generates a flow gas containing ozone; an input opening to receive a bulk material into the treatment chamber. An input port is provided for introducing the flow gas containing of ozone into the treatment chamber. A first sensor measures a level of ozone in the gas output of the treatment chamber. The other sensors measure ozone concentration and temperature within the treatment chamber. An output opening provides an exit for the bulk material. An output port provides an exit for the flow gas. An auger is disposed within the treatment chamber to move the bulk material through the treatment chamber.
    Type: Application
    Filed: February 9, 2018
    Publication date: May 6, 2021
    Applicant: OWS AGRI LIMITED
    Inventor: Dmitry Medvedev
  • Publication number: 20210003501
    Abstract: An apparatus includes an emitter, the emitter comprising an ultraviolet light emitting diode (UV-LED) and being disposed on a first end of a bounded volume suitable for holding a liquid. The liquid may have a negative Langelier saturation index (LSI). The bounded volume can be a chamber, a tank, or the like. The apparatus includes a detector, the detector comprising an ultraviolet light sensor (UV sensor) and being disposed on a second end of the bounded volume, the second end being opposite the first end, wherein the UV-LED comprises a point source, and wherein the emitter generates a parallel beam of light.
    Type: Application
    Filed: January 23, 2018
    Publication date: January 7, 2021
    Applicant: OWS AGRI LIMITED
    Inventor: Dmitry Medvedev
  • Publication number: 20200408674
    Abstract: An apparatus includes an emitter, the emitter comprising an ultraviolet light emitting diode (UV-LED) and being disposed on a first end of a bounded volume suitable for holding a gas. The bounded volume can be a chamber, a room, or the like. The apparatus includes a detector, the detector comprising an ultraviolet light sensor (UV sensor) and being disposed on a second end of the bounded volume, the second end being opposite the first end, wherein the UV-LED comprises a point source, and wherein the emitter generates a parallel beam of light.
    Type: Application
    Filed: January 16, 2018
    Publication date: December 31, 2020
    Applicant: OWS AGRI LIMITED
    Inventor: Dmitry Medvedev
  • Publication number: 20200408673
    Abstract: An apparatus includes an emitter comprising an ultraviolet light emitting diode (UV-LED) disposed on a first end of an optical cuvette. An extraction cuvette may hold a liquid having a positive Langelier saturation index (LSI), and having a quantity of ozone gas dissolved therein. Air may be bubbled through the liquid in the extraction cuvette, and may then be directed to the optical cuvette. A detector comprising an ultraviolet light sensor (UV sensor) can be disposed on a second end of the optical cuvette. The UV-LED may be a point source, and the emitter may generate a parallel beam of light. A concentration of ozone in the gas in the optical cuvette can be determined based on a diminution of the UV light beam passing therethrough. This concentration can then be used to determine an ozone concentration in the liquid contained in the extraction cuvette.
    Type: Application
    Filed: January 24, 2018
    Publication date: December 31, 2020
    Applicant: OWS AGRI LIMITED
    Inventor: Dmitry Medvedev
  • Publication number: 20200393433
    Abstract: A system for determining ozone concentration in ice includes at least one emitter and first and second detectors. The emitter can be a light source including visible and UV light components, or the emitter can be a first emitter for emitting UV light and a second emitter for emitting visible light. The UV and visible light components can be directed through a sample of ice. The transmitted UV and visible light components can be detected by UV and visible light detectors. The amount of UV and visible light received by the detectors can be compared to levels of UV and visible light emitted by the emitter(s) can be used to determine the concentration of a dissolved gas (e.g., ozone) in the sample of ice.
    Type: Application
    Filed: January 23, 2018
    Publication date: December 17, 2020
    Applicant: OWS AGRI LIMITED
    Inventor: Dmitry Medvedev
  • Publication number: 20200384142
    Abstract: A sterilization system may include an ozone generator, a buffer chamber, an ozone concentration monitor or cuvette, a treatment chamber, one or more valves, and a controller. The ozone generator generates a flow of ozone. The buffer chamber stores the flow of ozone. The ozone cuvette monitors a concentration of ozone from the buffer chamber. The treatment chamber receives a material for sterilization, and receives a flow of air/ozone. The controller selectively and independently controls each of the valves. The sterilization system including first and second operating modes. In the first operating mode, the treatment chamber is isolated from the ozone generator and the buffer chamber such that ozone is not being supplied to the treatment chamber. In the second operating mode, the treatment chamber is in communication with the ozone generator and the buffer chamber such that ozone is being supplied to the treatment chamber.
    Type: Application
    Filed: January 30, 2018
    Publication date: December 10, 2020
    Applicant: OWS AGRI LIMITED
    Inventors: Dmitry Medvedev, Alex Tsipenyuk
  • Patent number: 10647574
    Abstract: An ozone generator includes a discharge chamber; an inlet opening for feeding air into the discharge chamber; an outlet opening for removing ozone from the discharge chamber; and at least two cylindrical electrode sets in the discharge chamber. Each electrode set includes a ground electrode; a high voltage electrode; a dielectric between the ground electrode and the high voltage electrode; the dielectric separated from the ground electrode by a first discharge gap, and the dielectric separated from the high voltage electrode by a second discharge gap. A high voltage power supply provides a voltage impulse to the high voltage electrode of at least 2 kV (at least 5 kV is most cases), and a peak current of at least 1 ampere (at least 4 amperes in most cases). The high voltage power supply provides a dU/dt of the voltage impulse of between 5 kV/?sec and 50 kV/?sec.
    Type: Grant
    Filed: February 26, 2019
    Date of Patent: May 12, 2020
    Assignee: DM ECO Plasma, Inc.
    Inventor: Dmitry Medvedev