Patents by Inventor De Chen

De Chen 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: 20260061361
    Abstract: A heating tube for supporting the combustion of a fuel and an oxidant includes a tubular wall for containing a gas flow through the heating tube and a catalyst, contained by the tubular wall, for catalysing a combustion reaction of a gaseous fuel and a gaseous oxidant.
    Type: Application
    Filed: August 18, 2023
    Publication date: March 5, 2026
    Inventors: Asbjørn STRAND, Kumar Ranjan ROUT, De CHEN
  • Publication number: 20260001061
    Abstract: A method for preparing glycolic acid from waste polyester plastic comprises: (1) mixing waste polyester plastic, a hydrolyzing agent, a solvent, and a catalyst in a reactor, and then adding a gas containing oxygen for reaction; (2) filtering and washing a reaction product to obtain terephthalic acid and oxidation product, wherein the oxidation product comprises glycolic acid. The catalyst comprises a metal element Au and a second metal oxide, and the second metal oxide is one compound or more compounds selected from a group consisting of NiO, TiO2, CeO2, ZrO2, and MgO. The catalyst can be used for depolymerizing and oxidizing waste polyester plastics in one pot to prepare glycolic acid.
    Type: Application
    Filed: June 27, 2025
    Publication date: January 1, 2026
    Applicant: CHINA UNIVERSITY OF PETROLEUM (EAST CHINA)
    Inventors: Hao YAN, Qinghai CHEN, Xiang FENG, Kai ZHAO, Yibin LIU, Xin ZHOU, De CHEN, Chaohe YANG
  • Publication number: 20250340784
    Abstract: Disclosed herein is a method of preparing hydrogen and liquid fuel from a feedstock that comprises plastics, the method comprising: generating a first gas stream, that is a pyrolysis gas, by performing a pyrolysis process on the feedstock; condensing some of the first gas stream to generate a second gas stream and pyrolysis oil, wherein the second gas stream is a light component of the pyrolysis gas; performing a reforming process on the second gas stream to generate hydrogen; and generating liquid fuel by performing a hydrogenation process on the pyrolysis oil; wherein the hydrogenation process reacts the pyrolysis oil with at least some of the generated hydrogen by the reforming process.
    Type: Application
    Filed: May 16, 2023
    Publication date: November 6, 2025
    Applicant: Quantafuel ASA
    Inventors: Kumar R ROUT, De CHEN, Lars Erik FAREID, Erik FAREID
  • Patent number: 12449400
    Abstract: A detection method based on a battery defect detection system, a system and a storage medium are disclosed. The detection method includes: acquiring a scanning trigger signal, and controlling an ultrasonic transceiver and a motion control platform to work, so that the ultrasonic transceiver receives waveform data of ultrasonic waves passing through a cell; controlling an oscilloscope to collect the waveform data; receiving the waveform data and performing imaging processing to obtain an imaging diagram; and detecting whether or not the cell has a defect according to the imaging diagram.
    Type: Grant
    Filed: November 14, 2022
    Date of Patent: October 21, 2025
    Assignee: Guangdong Lyric Robot Automation Co., Ltd.
    Inventors: De Chen, Qihui Lu, Peng Fan
  • Publication number: 20250281904
    Abstract: Disclosed herein is a solid sorbent for use in a carbon dioxide capture process, the sorbent comprising a solid sorbent support that comprises pores; and secondary amines that are covalently attached to the solid sorbent support, wherein the secondary amines are confined inside the pores of the solid sorbent support and are present at a density that is greater than 4 amine groups/nm2. Also disclosed herein is a method of preparing the solid sorbent of the invention, a method for the regeneration of the solid sorbent of the invention, the use of the solid sorbent in the adsorption of carbon dioxide, and the use of the solid sorbent in a carbon dioxide capture process that employs temperature swing adsorption with carbon dioxide purge as a desorption strategy.
    Type: Application
    Filed: July 26, 2023
    Publication date: September 11, 2025
    Inventors: De Chen, Kumar Ranjan Rout, Dumitrita Spinu
  • Publication number: 20250256959
    Abstract: A method of generating fuel for use in a combustor of a gas turbine includes generating an exhaust gas by a first combustor, generating reformate comprising hydrogen, and generating a fuel that is a gas mixture of the reformate and exhaust gas from the first combustor, and using the fuel in a combustor in a gas turbine. The reformate may be generated in dependence on at least some of the heat generated by the first combustor. The method may also include supplying air that has not been oxygen depleted and combusting the supplied air and fuel in the combustor of the gas turbine.
    Type: Application
    Filed: April 30, 2025
    Publication date: August 14, 2025
    Applicant: Amtech AS
    Inventors: Asbjørn STRAND, Kumar Ranjan Rout, De Chen
  • Patent number: 12234522
    Abstract: A method for controlling carbide network in a bearing steel wire rod by controlling cooling and rolling, comprises the following steps: rapidly rolling a bar to a wire rod and spinning it into a loose coil, controlling the rolling temperature at 780° C.-880° C.; and the spinning temperature at 750° C.-850° C.; carrying out on-line controlling cooling of continuous loose coils using EDC water bath austempering cooling process, controlling the cooling rate at 2.0° C./s-10° C./s, and controlling the final cooling temperature within 620-630° C.; after EDC water bath austempering cooling, using slow cooling under a cover, and the temperature is controlled to be 400° C.-500° C. when being removed out of the cover; after slow cooling, collecting coils, and cooling in air to the room temperature.
    Type: Grant
    Filed: November 8, 2019
    Date of Patent: February 25, 2025
    Assignees: JIANGYIN XINGCHENG GOLD MATERIALS CO., LTD, JIANGYIN XINGCHENG SPECIAL STEEL WORKS CO., LTD
    Inventors: Lin Zhang, Jianfeng Zhang, Changhe Lu, Yuehui Guan, Guozhong Li, Xiaohong Xu, Yun Bai, Hao Zong, Jiafeng He, De Chen, Zhen Huang, Jia Yang
  • Publication number: 20240399583
    Abstract: Provided are an obstacle detection method and apparatus, a device and a storage medium. The obstacle detection method may include: determining a detection planar region according to a mobile robot and a target position, wherein a distance from a point in the detection planar region to a connecting line between the mobile robot and the target position does not exceed a detection fixed value; determining a shortest distance from an obstacle to the connecting line between the mobile robot and the target position based on a vector distance method; and determining whether the obstacle is present in the detection planar region according to a result of comparison of the shortest distance with the detection fixed value.
    Type: Application
    Filed: December 20, 2022
    Publication date: December 5, 2024
    Inventors: De Chen, Shaolei Zhong, Hai Wang, Dechao Wang, Changpeng Ding
  • Patent number: 12145212
    Abstract: The present disclosure discloses a pressure detection assembly and an ultrasonic welding device, the pressure detection assembly includes a first connecting piece, a second connecting piece, a detection unit and an elastic member, wherein the first connecting piece is provided with a first guide portion; the second connecting piece is connected to the first connecting piece, and the second connecting piece is provided with a second guide portion matched with the first guide portion; the detection unit is provided between the first connecting piece and the second connecting piece, and the detection unit is configured to collect the pressure value between the first connecting piece and the second connecting piece; and the elastic member is connected between the first connecting piece and the second connecting piece, wherein the elastic member can make the first connecting piece and the second connecting piece clamp the detection unit.
    Type: Grant
    Filed: February 25, 2022
    Date of Patent: November 19, 2024
    Assignee: GUANGDONG LYRIC ROBOT AUTOMATION CO., LTD.
    Inventors: De Chen, Qihui Lu, Peng Fan, Junxiong Zhou, Yixian Du
  • Patent number: 12131512
    Abstract: A product positioning method includes collecting a product image of a product, dividing the product image into a plurality of rectangular regions, performing integral image calculation on each rectangular region to obtain a plurality of integral images, forming n integral image regions each having four said integral images with two adjacent sides of each of the four said integral images connecting with one side of other two images of the four said integral images, numbering the four said integral images clockwise or counterclockwise, performing differential calculation on each integral image region to obtain a differential value according to the four said integral images, obtaining coordinates of a vertex of the product according to the differential values, and performing position correction on the product image according to obtained coordinates of the vertex and coordinates of a target vertex.
    Type: Grant
    Filed: November 18, 2021
    Date of Patent: October 29, 2024
    Inventors: Yixian Du, Gang Wang, De Chen, Jinjin Shi
  • Publication number: 20240157468
    Abstract: The present disclosure discloses a pressure detection assembly and an ultrasonic welding device, the pressure detection assembly includes a first connecting piece, a second connecting piece, a detection unit and an elastic member, wherein the first connecting piece is provided with a first guide portion; the second connecting piece is connected to the first connecting piece, and the second connecting piece is provided with a second guide portion matched with the first guide portion; the detection unit is provided between the first connecting piece and the second connecting piece, and the detection unit is configured to collect the pressure value between the first connecting piece and the second connecting piece; and the elastic member is connected between the first connecting piece and the second connecting piece, wherein the elastic member can make the first connecting piece and the second connecting piece clamp the detection unit.
    Type: Application
    Filed: February 25, 2022
    Publication date: May 16, 2024
    Inventors: De CHEN, Qihui LU, Peng FAN, Junxiong ZHOU, Yixian DU
  • Publication number: 20240102966
    Abstract: A detection method based on a battery defect detection system, a system and a storage medium are disclosed. The detection method includes: acquiring a scanning trigger signal, and controlling an ultrasonic transceiver and a motion control platform to work, so that the ultrasonic transceiver receives waveform data of ultrasonic waves passing through a cell; controlling an oscilloscope to collect the waveform data; receiving the waveform data and performing imaging processing to obtain an imaging diagram; and detecting whether or not the cell has a defect according to the imaging diagram.
    Type: Application
    Filed: November 14, 2022
    Publication date: March 28, 2024
    Inventors: De Chen, Qihui Lu, Peng Fan
  • Patent number: 11890576
    Abstract: Disclosed herein is a method of regenerating a sorbent of gas in a capture process of said gas, wherein the capture process comprises recirculating the sorbent between a gas capturing system and regenerating reactor system, the method comprising the regenerating reactor system performing the steps of: receiving a solid sorbent to be regenerated, wherein the sorbent is a sorbent of carbon dioxide gas; generating heat by combusting a fuel with an oxidising agent in the presence of a catalyst; regenerating the sorbent by using the generated heat to indirectly heat the sorbent so that the sorbent releases carbon dioxide gas; outputting the regenerated sorbent; and outputting the released carbon dioxide gas. Advantages of the gas capture system include a higher efficiency than known techniques.
    Type: Grant
    Filed: March 8, 2018
    Date of Patent: February 6, 2024
    Assignee: FJELL BIODRY AS
    Inventors: De Chen, Kumar Ranjan Rout, Asbjørn Strand
  • Patent number: 11801497
    Abstract: The present invention relates to processes for the preparation of biofuel from biomass by fast hydropyrolysis or fast pyrolysis, using hydrogen generated by sorption enhanced steam reforming. The present invention also relates to fixed bed tandem catalytic-upgrading processes, and reactors and hydrodeoxygenation (HDO) catalysts useful in those processes.
    Type: Grant
    Filed: January 15, 2020
    Date of Patent: October 31, 2023
    Assignees: NORWEGIAN UNIVERSITY OF SCIENCE AND TECHNOLOGY NTNU, SINTEF AS, QUANTAFUEL ASA
    Inventors: De Chen, Kumar Ranjan Rout, Isaac Yeboah
  • Patent number: 11759746
    Abstract: Disclosed herein is a gas capture system that includes a gas inlet arranged to receive a gas flow into the system; a gas outlet arranged to provide a gas flow out of the system; a gas capture region for mass transfer between a gas and a sorbent of the gas; and a sorbent regeneration region for regenerating the sorbent by heating the sorbent so that the sorbent releases a gas.
    Type: Grant
    Filed: December 17, 2018
    Date of Patent: September 19, 2023
    Assignee: FJELL BIODRY AS
    Inventors: Asbjørn Strand, Kumar Ranjan Rout, De Chen
  • Publication number: 20230158610
    Abstract: A welding quality detection system and an ultrasonic welding device, and a welding quality detection method are disclosed. The welding quality detection system includes a detection module, a control module and a display module. The detection module is configured for collecting a transverse friction force and a longitudinal welding pressure of a welded workpiece. The control module is electrically connected with the detection module, and the control module is configured for receiving, analyzing and processing a transverse friction force signal and a longitudinal welding pressure signal of the detection module. The display module is electrically connected with the control module, and the display module is configured for displaying analysis results of the control module. According to the application, a welding quality of the welded workpiece can be effectively detected, and a welding defect can be found in real time.
    Type: Application
    Filed: February 25, 2022
    Publication date: May 25, 2023
    Applicant: Guangdong Lyric Robot Automation Co., Ltd.
    Inventors: Junxiong Zhou, Yixian Du, De Chen, Qihui Lu, Peng Fan
  • Publication number: 20230060156
    Abstract: A fully automatic mask production line is disclosed, including a mask material loading device, a folding device, a nose wire loading device, a mask body forming device, a mask overturning and conveying device, an ear loop welding device and a collecting device. The mask material loading device is adjacent to the folding device, the nose wire loading device is adjacent to the folding device, a feeding end of the mask body forming device is arranged opposite to the nose wire loading device and the folding device respectively, the mask overturning and conveying device is adjacent to the mask body forming device, and the ear loop welding device and the collecting device are respectively arranged on a conveying path and a conveying tail end of the mask overturning and conveying device.
    Type: Application
    Filed: June 18, 2020
    Publication date: March 2, 2023
    Inventors: Junxiong Zhou, Junjie Zhou, Yixian Du, Zanbin Yao, Haisheng Cai, De Chen, Jian Luo
  • Publication number: 20220364199
    Abstract: A method for controlling carbide network in a bearing steel wire rod by controlling cooling and rolling, comprises the following steps: rapidly rolling a bar to a wire rod and spinning it into a loose coil, controlling the rolling temperature at 780° C.-880° C.; and the spinning temperature at 750° C.-850° C.; carrying out on-line controlling cooling of continuous loose coils using EDC water bath austempering cooling process, controlling the cooling rate at 2.0° C./s-10° C./s, and controlling the final cooling temperature within 620-630° C.; after EDC water bath austempering cooling, using slow cooling under a cover, and the temperature is controlled to be 400° C.-500° C. when being removed out of the cover; after slow cooling, collecting coils, and cooling in air to the room temperature.
    Type: Application
    Filed: November 8, 2019
    Publication date: November 17, 2022
    Applicants: JIANGYIN XINGCHENG GOLD MATERIALS CO., LTD, JIANGYIN XINGCHENG SPECIAL STEEL WORKS CO., LTD
    Inventors: Lin ZHANG, Jianfeng ZHANG, Changhe LU, Yuehui GUAN, Guozhong LI, Xiaohong XU, Yun BAI, Hao ZONG, Jiafeng HE, De CHEN, Zhen HUANG, Jia YANG
  • Publication number: 20220136700
    Abstract: Disclosed herein is a fuel for use in a combustor of a gas turbine, wherein the fuel is a gas mixture that comprises hydrogen and exhaust gas from a total combustor.
    Type: Application
    Filed: February 14, 2020
    Publication date: May 5, 2022
    Applicant: AMTECH AS
    Inventors: Asbjørn STRAND, Kumar Ranjan ROUT, De CHEN
  • Publication number: 20220076428
    Abstract: A product positioning method includes: collecting a product picture; performing integral image calculation on the product picture; and acquiring, according to the calculated integral image, coordinates of each vertex in the product picture by means of differential calculation. According to the present application, an integral image algorithm is applied to product positioning, such that when the product picture quality is not high, for example, the picture is blurry, and it is thus not convenient to position a product by using a picture edge algorithm or a template matching algorithm, the product picture and a background region can be quickly divided by using the integral image algorithm, thereby positioning the product and not being limited by poor picture quality.
    Type: Application
    Filed: November 18, 2021
    Publication date: March 10, 2022
    Inventors: Yixian Du, Gang Wang, De Chen, Jinjin Shi