Patents by Inventor Hwee Hong Chew

Hwee Hong Chew 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: 20230404116
    Abstract: The invention relates to a method and system for treating a liquid beverage using an electromagnetic field comprising AC and DC components to achieve antioxidizing, promoting fat/lipid burn metabolism, reducing alcohol toxic effect and improving drinking mouth feel and flavor. In particular, the invention relates to methods and systems for applying the DC biased time-varying frequency pulsating electromagnetic wave in a pulsating manner to the alcoholic and non-alcoholic beverages. The method and the system of the invention are able to result in various treatment effects for the beverages simultaneously.
    Type: Application
    Filed: August 6, 2021
    Publication date: December 21, 2023
    Inventors: Hwee Hong CHEW, Marius Abella ASERON, Xavier Alexen Roxas ASERON, Jan Adrian Roxas ASERON
  • Publication number: 20230341364
    Abstract: The invention provides a method for determining the antioxidant capacity of beverage by titrating a standard oxidant solution using liquid sample of the beverage and monitoring oxidation reduction potential of the solution until a neutral reference value is reached, and using the titration volume to calculate the antioxidant capacity. The invention also provides test apparatus and test kit for performing the method of the invention.
    Type: Application
    Filed: December 29, 2022
    Publication date: October 26, 2023
    Inventor: Hwee Hong CHEW
  • Patent number: 11390961
    Abstract: A system and a method for prevention of adhesion of marine organisms to a substrate contacted with seawater are provided. The system comprises a generator (120, 220) for producing an electrical signal (150) operating in desirable frequencies in which the marine organisms can be chased or killed, said generator (120, 220) having at least two output connectors (122, 124, 222, 224), means for oscillating and propagating the electrical signal (150) along a surface of the substrate, said means being adapted to make electrical connection with the at least two output connectors (122, 124, 222, 224) of the generator (120, 220) and being submerged in seawater, and an electric power source (110, 210) connected to the generator (122, 124, 222, 224) for applying a selected voltage to the generator (122, 124, 222, 224) to produce the electrical signal (150).
    Type: Grant
    Filed: June 21, 2016
    Date of Patent: July 19, 2022
    Assignee: Sembcorp Marine Repairs & Upgrades Pte. Ltd.
    Inventor: Hwee Hong Chew
  • Patent number: 10858268
    Abstract: The invention relates to a system for applying a superimposed time-varying frequency electromagnetic wave to a target object or a target region that is formed by the target object and a medium surrounding the target object, comprising a device for generating a superimposed time-varying frequency electromagnetic wave where the time-varying AC wave is riding on the predefined DC bias voltage. When applied to the object or region, the superimposed time-varying frequency electromagnetic wave is able to induce a flow of ionic current having a DC component traveling in a pulsating and time-varying manner in the target object and/or in the medium and effect induced vibration of electrons and molecules of the target object and the medium. The invention also relates to a method applying a superimposed time-varying frequency electromagnetic wave to a target object or a target region.
    Type: Grant
    Filed: July 29, 2015
    Date of Patent: December 8, 2020
    Assignee: Semb-Eco R&D Pte Ltd
    Inventors: Hwee Hong Chew, Poh Kwee Ong
  • Patent number: 10807886
    Abstract: The invention relates to a method and system for preventing corrosion of at least one metallic structure in an electrolyte medium, comprising applying a superimposed time-varying frequency electromagnetic wave to the structure, the method comprising the steps of generating a superimposed time-varying frequency electromagnetic wave (DAC wave) where an AC driving signal with time-varying frequency is riding on a DC output with a predefined DC bias voltage, transmitting the DAC wave current to one or more emitters, emitting the DAC wave via the one or more emitters, placing the one or more emitters at a spaced distance from the metallic structure, subjecting the metallic structure to the DAC wave current, controlling the negative return current of the DAC wave from the metallic structure, such that the DAC wave is distributed across the structure surface and directly excites a target region of the metallic structure, and wherein the excitation induces a flow of ionic current having a DC component travelling in a
    Type: Grant
    Filed: July 28, 2016
    Date of Patent: October 20, 2020
    Assignee: Semb-Eco R&D Pte. Ltd.
    Inventors: Hwee Hong Chew, Poh Kwee Ong
  • Patent number: 10561986
    Abstract: The invention relates to a method and system for treating water within a water system to control one or more of scaling, corrosion, bacteria and algae. In particular, the invention relates to methods and systems for applying a superimposed time-varying frequency electromagnetic wave comprising both AC and DC components in a pulsating manner to water within a water system, such as, for example, cooling water systems, cooling towers, boiler systems and water storage systems. The method and the system of the invention significantly reduce capital costs and require very low energy, they avoid environmentally unfriendly final products, and are able to result in various treatment effects simultaneously.
    Type: Grant
    Filed: July 28, 2016
    Date of Patent: February 18, 2020
    Assignee: SEMB-ECO R&D PTE LTD
    Inventors: Hwee Hong Chew, Poh Kwee Ong
  • Patent number: 10532318
    Abstract: The disclosure relates to a method and system for treating ballast water and ballast water treatment systems in order for treatment effects to be carried out, such as controlling the transportation of undesirable and invasive marine organisms. In particular, the disclosure relates to methods and systems for applying a superimposed time-varying frequency electromagnetic wave comprising both AC and DC components in a pulsating manner to ballast water within a ballast water treatment system.
    Type: Grant
    Filed: July 28, 2016
    Date of Patent: January 14, 2020
    Assignee: Semb-Eco R&D PTE LTD
    Inventors: Hwee Hong Chew, Poh Kwee Ong
  • Patent number: 10500542
    Abstract: The invention relates to a method and system for treating flue gases comprising generating a superimposed DC time-varying pulsed wave by superimposing a direct current on a low frequency time-varying pulsating electromagnetic wave signal, providing a treatment medium comprising water, using the superimposed DC pulsed wave to treat the treatment water medium, negatively charging the treated treatment water medium, and passing the negatively charged treated treatment water medium into a chamber containing flue gas such that the negatively charged treated treatment water affects the gas components of the flue gas and converts the gas components respectively to one or more of sulphates, nitrogen, oxygen, bicarbonates, carbonates and carbon, which can then be removed with used treatment water or exhaust gases.
    Type: Grant
    Filed: July 29, 2016
    Date of Patent: December 10, 2019
    Assignee: Semb-Eco R&D PTE LTD
    Inventors: Hwee Hong Chew, Poh Kwee Ong
  • Patent number: 10494723
    Abstract: The present invention provides a system and a method for providing corrosion protection of a metallic structure using time varying electromagnetic wave. The system comprises: a generator for generating electromagnetic wave having a time varying frequency, said generator having at least two output terminals in electrical connection respectively with first and second excitation sites positioned in a spaced manner on the metallic structure, allowing for subjecting the metallic structure to the electromagnetic wave; and an electric power source connected to the generator for applying a driving voltage to the generator to drive the generation of the electromagnetic wave; wherein the driving voltage and/or the frequency of the electromagnetic wave are selected such that the metallic structure is energized to form in-situ a passive oxidized species of the metal on a surface of the metallic structure, which species is insusceptible to corrosion.
    Type: Grant
    Filed: October 11, 2012
    Date of Patent: December 3, 2019
    Assignee: Sembcorp Marine Repairs & Upgrades Pte. Ltd.
    Inventor: Hwee Hong Chew
  • Patent number: 10457570
    Abstract: Embodiments of the invention relate to a ballast water treatment system and method onboard ships or sea-going vessels. The system includes a filtration system, a UV disinfection system and a biofouling control system, which is adapted to provide continuous control of multiplication of marine organisms even during an absence of a ballasting and a de-ballasting process.
    Type: Grant
    Filed: August 28, 2013
    Date of Patent: October 29, 2019
    Assignee: SEMBCORP MARINE REPAIRS & UPGRADES PTE. LTD.
    Inventors: Sow Hong Kuik, Tee Tank Chew, Hwee Hong Chew, Chee Yong Chua
  • Patent number: 10227243
    Abstract: The present invention provides a system for prevention of adhesion of organisms in water to a substrate in contact with the water, wherein the substrate and the water flowing around the substrate form together a treated region, comprising a generator for producing electromagnetic wave having a time varying frequency, in electrical connection with a first excitation site of the treated region and with an avalanche current suppressor having its another terminal connected with a second excitation site of the treated region. A selected voltage is applied to the generator such that the generator is triggered to produce the electromagnetic wave capable of inducing an avalanche current to shock or kill the organisms. The invention also provides a method for prevention of adhesion of organisms in water to a substrate in contact with the water.
    Type: Grant
    Filed: August 28, 2012
    Date of Patent: March 12, 2019
    Assignee: ECOSPEC GLOBAL TECHNOLOGY PTE. LTD
    Inventor: Hwee Hong Chew
  • Publication number: 20180222778
    Abstract: The invention relates to a method and system for treating water within a water system to control one or more of scaling, corrosion, bacteria and algae. In particular, the invention relates to methods and systems for applying a superimposed time-varying frequency electromagnetic wave comprising both AC and DC components in a pulsating manner to water within a water system, such as, for example, cooling water systems, cooling towers, boiler systems and water storage systems. The method and the system of the invention significantly reduce capital costs and require very low energy, they avoid environmentally unfriendly final products, and are able to result in various treatment effects simultaneously.
    Type: Application
    Filed: July 28, 2016
    Publication date: August 9, 2018
    Inventors: Hwee Hong CHEW, Poh Kwee ONG
  • Publication number: 20180221821
    Abstract: The invention relates to a method and system for treating flue gases comprising generating a superimposed DC time-varying pulsed wave by superimposing a direct current on a low frequency time-varying pulsating electromagnetic wave signal, providing a treatment medium comprising water, using the superimposed DC pulsed wave to treat the treatment water medium, negatively charging the treated treatment water medium, and passing the negatively charged treated treatment water medium into a chamber containing flue gas such that the negatively charged treated treatment water affects the gas components of the flue gas and converts the gas components respectively to one or more of sulphates, nitrogen, oxygen, bicarbonates, carbonates and carbon, which can then be removed with used treatment water or exhaust gases.
    Type: Application
    Filed: July 29, 2016
    Publication date: August 9, 2018
    Inventors: Hwee Hong CHEW, Poh Kwee ONG
  • Publication number: 20180222777
    Abstract: The invention relates to a system for applying a superimposed time-varying frequency electromagnetic wave to a target object or a target region that is formed by the target object and a medium surrounding the target object, comprising a device for generating a superimposed time-varying frequency electromagnetic wave where the time-varying AC wave is riding on the predefined DC bias voltage. When applied to the object or region, the superimposed time-varying frequency electromagnetic wave is able to induce a flow of ionic current having a DC component traveling in a pulsating and time-varying manner in the target object and/or in the medium and effect induced vibration of electrons and molecules of the target object and the medium. The invention also relates to a method applying a superimposed time-varying frequency electromagnetic wave to a target object or a target region.
    Type: Application
    Filed: July 29, 2015
    Publication date: August 9, 2018
    Inventors: Hwee Hong CHEW, Poh Kwee ONG
  • Publication number: 20180216246
    Abstract: The invention relates to a method and system for preventing corrosion of at least one metallic structure in an electrolyte medium, comprising applying a superimposed time-varying frequency electromagnetic wave to the structure, the method comprising the steps of generating a superimposed time-varying frequency electromagnetic wave (DAC wave) where an AC driving signal with time-varying frequency is riding on a DC output with a predefined DC bias voltage, transmitting the DAC wave current to one or more emitters, emitting the DAC wave via the one or more emitters, placing the one or more emitters at a spaced distance from the metallic structure, subjecting the metallic structure to the DAC wave current, controlling the negative return current of the DAC wave from the metallic structure, such that the DAC wave is distributed across the structure surface and directly excites a target region of the metallic structure, and wherein the excitation induces a flow of ionic current having a DC component travelling in a
    Type: Application
    Filed: July 28, 2016
    Publication date: August 2, 2018
    Inventors: Hwee Hong CHEW, Poh Kwee ONG
  • Publication number: 20180201526
    Abstract: The disclosure relates to a method and system for treating ballast water and ballast water treatment systems in order for treatment effects to be carried out, such as controlling the transportation of undesirable and invasive marine organisms. In particular, the disclosure relates to methods and systems for applying a superimposed time-varying frequency electromagnetic wave comprising both AC and DC components in a pulsating manner to ballast water within a ballast water treatment system.
    Type: Application
    Filed: July 28, 2016
    Publication date: July 19, 2018
    Inventors: Hwee Hong CHEW, Poh Kwee ONG
  • Patent number: 9689079
    Abstract: The present invention provides a permanent and cost-effective composite electrode for electrolytically producing alkaline water, comprising an electrode core made of steel, a filler densely packed around the electrode core, said filler capable of creating a mildly aqueous and alkaline environment to motivate formation of a layer of magnetite over a surface of the electrode core, and a housing enclosing the filler, said housing having a pore size selected such that very low permeation of gas and liquid takes place. The invention also provides an apparatus comprising the composite electrode, and the use of the alkaline water produced by the apparatus of the invention. According to the invention, no additional undesired side products, such as toxic chlorine gas and other pollutants, are produced and discharged to the environment.
    Type: Grant
    Filed: December 8, 2011
    Date of Patent: June 27, 2017
    Assignee: ECOSPEC GLOBAL TECHNOLOGY PTE LTD.
    Inventor: Hwee Hong Chew
  • Patent number: 9469539
    Abstract: The invention relates to a method for carbonizing carbon dioxide, comprising the step of contacting carbon dioxide with a solution of chelating agent or a solution of substance which exhibits chelating properties under dynamic conditions to generate oxygen and carbon particles. The method of the invention is significantly more economical and convenient and do not cause harm to the environments. The invention also exhibits a novel and unique feature that elemental carbon and oxygen are generated as final products under normal room temperature and atmosphere, and the carbon can be recovered as an energy source.
    Type: Grant
    Filed: September 2, 2011
    Date of Patent: October 18, 2016
    Assignee: ECOSPEC GLOBAL TECHNOLOGY PTE LTD.
    Inventor: Hwee Hong Chew
  • Publication number: 20160298257
    Abstract: A system and a method for prevention of adhesion of marine organisms to a substrate contacted with seawater are provided. The system comprises a generator (120, 220) for producing an electrical signal (150) operating in desirable frequencies in which the marine organisms can be chased or killed, said generator (120, 220) having at least two output connectors (122, 124, 222, 224), means for oscillating and propagating the electrical signal (150) along a surface of the substrate, said means being adapted to make electrical connection with the at least two output connectors (122, 124, 222, 224) of the generator (120, 220) and being submerged in seawater, and an electric power source (110, 210) connected to the generator (122, 124, 222, 224) for applying a selected voltage to the generator (122, 124, 222, 224) to produce the electrical signal (150).
    Type: Application
    Filed: June 21, 2016
    Publication date: October 13, 2016
    Inventor: Hwee Hong Chew
  • Publication number: 20150232352
    Abstract: The present invention provides a system for prevention of adhesion of organisms in water to a substrate in contact with the water, wherein the substrate and the water flowing around the substrate form together a treated region, comprising a generator for producing electromagnetic wave having a time varying frequency, in electrical connection with a first excitation site of the treated region and with an avalanche current suppressor having its another terminal connected with a second excitation site of the treated region. A selected voltage is applied to the generator such that the generator is triggered to produce the electromagnetic wave capable of inducing an avalanche current to shock or kill the organisms. The invention also provides a method for prevention of adhesion of organisms in water to a substrate in contact with the water.
    Type: Application
    Filed: August 28, 2012
    Publication date: August 20, 2015
    Applicant: ECOSPEC GLOBAL TECHNOLOGY PTE. LTD
    Inventor: Hwee Hong Chew