Patents by Inventor Wen Du

Wen Du 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).

  • Patent number: 12433322
    Abstract: A water-based electronic cigarette liquid is disclosed. The water-based electronic cigarette liquid includes the following ingredients in parts by mass: 5-60 parts of water, 5-50 parts of smoke ingredient which is solid at normal temperature and is soluble in water, and 0-30 parts of glycerol. The electronic cigarette liquid in this invention has environmental protection, high safety, comfortable smoking taste, high smoke producing effect, and low viscosity.
    Type: Grant
    Filed: January 20, 2020
    Date of Patent: October 7, 2025
    Assignees: CHINA TOBACCO HUNAN INDUSTRIAL CO., LTD., SHANGHAI NEW TOBACCO PRODUCT RESEARCH INSTITUTE CO., LTD., CHINA TOBACCO HENAN INDUSTRIAL CO., LTD.
    Inventors: Jianfu Liu, Jianhua Yi, Wen Du, Jiaruo Huang, Zhiguo Wang, Xinliang Tan, Kejun Zhong, Zhiwei Sun, Wei Liu, Jingbo Chen, Chao Tan, Chao Chen, Chaoying Chen, Jing Yang, Qishan Yuan, Xinqiang Yin, Xiaoyi Guo, Jianxin Ren
  • Patent number: 12213513
    Abstract: A low-temperature smoking body and a preparation method thereof are disclosed. The low-temperature smoking body includes tobacco particles. The tobacco particle includes a particle body and a shell wrapped on the particle body. A carrier is distributed in the particle body and/or the shell. The carrier includes at least one of a raw tobacco material, a non-tobacco material, and a porous material. The carrier carries a smoking agent, and the smoking agent includes a tobacco extract and/or an atomizer. In addition, a preparation method of the low-temperature smoking body is further disclosed. The low-temperature smoking body has better smoking stability and uniformity, and the tobacco particles having core-shell structures can effectively solve the problem of liquid leakage.
    Type: Grant
    Filed: March 19, 2019
    Date of Patent: February 4, 2025
    Assignee: CHINA TOBACCO HUNAN INDUSTRIAL CO., LTD.
    Inventors: Qian Chen, Ke Li, Yong Jin, Saibo Yu, Hongmei Fan, Shitai Wang, Chao Tan, Haifeng Tan, Qi Liu, Jianhua Yi, Wen Du, Xinqiang Yin, Xinliang Tan
  • Patent number: 12150474
    Abstract: A cooling cigarette filter and a cigarette are disclosed. The cooling cigarette filter comprises a cooling section (2). The cooling section (2) comprises a cooling stick (201) formed from paper (5). The cooling stick (201) has one or more holes (202) communicating two ends of the cooling stick. And the surface of the paper (5) is coated with a cooling material. The cooling cigarette filter has the advantages of ensuring the amount of smoke and lowering the temperature of the smoke entering the mouth. Through the combination design of the structure of the cooling stick and the type and amount of the cooling material, the smoke can flow out of a smoke generation section rapidly and smoothly And the temperature of the high-temperature smoke before entering the mouth can be significantly lowered, thereby improving the comfort and satisfaction of smoking.
    Type: Grant
    Filed: October 24, 2018
    Date of Patent: November 26, 2024
    Assignee: CHINA TOBACCO HUNAN INDUSTRIAL CO., LTD.
    Inventors: Wei Luo, Kejun Zhong, Wen Du, Lanying Xie, Liangsheng Qin, Jianhui Wen, Duo Ding, Guoyong Xie, Jianxin Ren, Zhiwei Sun
  • Publication number: 20240379242
    Abstract: A method for prognostic survival stage prediction based on machine learning includes acquiring patients' original information data within a previous preset time period and integrating the patients' original information data so as to obtain a first data set without recurrence time and a second data set with recurrence time; performing analysis based on preoperative information, postoperative information and survival status of each corresponding patient, so as to obtain a correlation degree among the preoperative information, the postoperative information and the survival status; and training in the first data set, so as to obtain a postoperative survival probability prediction model. The method includes training in the second data set, so as to obtain a survival time period prediction model if judging that a survival probability of a target patient is less than or equal to a preset value according to the postoperative survival probability prediction model.
    Type: Application
    Filed: July 25, 2024
    Publication date: November 14, 2024
    Inventors: Xin PENG, Haihui WANG, Mengqi JIA, Xuechao WANG, Min GAO, Guangyan YU, Wenbo ZHANG, Wen DU, Yao YU, Peng YE
  • Patent number: 12137730
    Abstract: A cooling cigarette filter and a smoking product are provided. The cooling cigarette filter comprises a cooling section. The cooling section is provided with one or more channels connecting two ends of the cooling section, and an inner surface of each channel is coated with a cooling material. The cooling material comprises an inorganic phase change material and PEG, and the inorganic phase change material comprises at least one of Na2CO3·10H2O, CH3COONa·3H2O, CaCl2·4H2O, and Na2SO4·10H2O. The cooling cigarette filter has the advantages of ensuring the amount of smoke and lowering the temperature of the smoke entering the mouth, especially in the cooling section. Through the combination design of the structure of the cooling stick and the type and amount of the cooling material, the smoke can flow out of a smoke generation section rapidly and smoothly.
    Type: Grant
    Filed: February 20, 2019
    Date of Patent: November 12, 2024
    Assignee: CHINA TOBACCO HUNAN INDUSTRIAL CO., LTD.
    Inventors: Wei Luo, Kejun Zhong, Jianfu Liu, Lanying Xie, Liangsheng Qin, Wen Du, Jianhua Yi, Xinqiang Yin, Duo Ding, Jianhui Wen, Guoyong Xie
  • Publication number: 20240016198
    Abstract: A water-based electronic cigarette liquid is disclosed. The water-based electronic cigarette liquid includes the following ingredients in parts by mass: 5-60 parts of water, 5-50 parts of smoke ingredient which is solid at normal temperature and is soluble in water, and 0-30 parts of glycerol. The electronic cigarette liquid in this invention has environmental protection, high safety, comfortable smoking taste, high smoke producing effect, and low viscosity.
    Type: Application
    Filed: January 20, 2020
    Publication date: January 18, 2024
    Applicants: CHINA TOBACCO HUNAN INDUSTRIAL CO., LTD., SHANGHAI NEW TOBACCO PRODUCT RESEARCH INSTITUTE CO., LTD., CHINA TOBACCO HENAN INDUSTRIAL CO., LTD.
    Inventors: Jianfu Liu, Jianhua Yi, Wen Du, Jiaruo Huang, Zhiguo Wang, Xinliang Tan, Kejun Zhong, Zhiwei Sun, Wei Liu, Jingbo Chen, Chao Tan, Chao Chen, Chaoying Chen, Jing Yang, Qishan Yuan, Xinqiang Yin, Xiaoyi Guo, Jianxin Ren
  • Publication number: 20230068565
    Abstract: A low-harm cigarette subjected to smoke enhancement, comprising cigarette paper, a filter tip, and an aerosol generating substrate. The aerosol generating substrate comprises a tobacco sheet subjected to smoke enhancement and/or tobacco shreds subjected to smoke enhancement.
    Type: Application
    Filed: November 30, 2020
    Publication date: March 2, 2023
    Applicants: CHINA TOBACCO HUNAN INDUSTRIAL CO., LTD., SHANGHAI NEW TOBACCO PRODUCT RESEARCH INSTITUTE CO., LTD., CHINA TOBACCO HENAN INDUSTRY CO., LTD.
    Inventors: Jianfu Liu, Jianhua Yi, Wen Du, Zhiguo Wang, Jiaruo Huang, Chao Tan, Wei Liu, Zhiwei Sun, Jingbo Chen, Kejun Zhong, Xinliang Tan, Chaoying Chen, Chao Chen, Jing Yang, Qishan Yuan
  • Patent number: 11288422
    Abstract: A simulation evaluation model of a high voltage ride through capability includes a wind turbine system aerodynamic model, a torque control model, a converter model, and a high voltage fault generating device model connected in sequence; the wind turbine system aerodynamic model is configured to calculate an airflow input power; the torque control model is configured to calculate a rotor electromagnetic torque according to the airflow input power; the high voltage fault generating device model is configured to simulate a high voltage fault and output a predetermined voltage on a low voltage side of a transformer; and the converter model is configured to calculate a stator reactive current, an active power and a reactive power of the wind turbine system during the high voltage fault according to the airflow input power, the rotor electromagnetic torque and the predetermined voltage on the low voltage side of the transformer.
    Type: Grant
    Filed: June 29, 2018
    Date of Patent: March 29, 2022
    Assignee: GUODIAN UNITED POWER TECHNOLOGY COMPANY LTD.
    Inventors: Jingchun Chu, Ling Yuan, Lei Pan, Wenchao Chen, Chong Jiao, Fa Xie, Wen Du, Yanping Li, Qian Wang, Xuefeng Lin, Yan Ding
  • Publication number: 20220079215
    Abstract: A cooling cigarette filter and a smoking product are provided. The cooling cigarette filter comprises a cooling section. The cooling section is provided with one or more channels connecting two ends of the cooling section, and an inner surface of each channel is coated with a cooling material. The cooling material comprises an inorganic phase change material and PEG, and the inorganic phase change material comprises at least one of Na2CO3.10H2O, CH3COONa.3H2O, CaCl2.4H2O, and Na2SO4.10H2O. The cooling cigarette filter has the advantages of ensuring the amount of smoke and lowering the temperature of the smoke entering the mouth, especially in the cooling section. Through the combination design of the structure of the cooling stick and the type and amount of the cooling material, the smoke can flow out of a smoke generation section rapidly and smoothly.
    Type: Application
    Filed: February 20, 2019
    Publication date: March 17, 2022
    Applicant: CHINA TOBACCO HUNAN INDUSTRIAL CO., LTD.
    Inventors: Wei Luo, Kejun Zhong, Jianfu Liu, Lanying Xie, Liangsheng Qin, Wen Du, Jianhua Yi, Xinqiang Yin, Duo Ding, Jianhui Wen, Guoyong Xie
  • Publication number: 20210401030
    Abstract: A low-temperature smoking body and a preparation method thereof are disclosed. The low-temperature smoking body includes tobacco particles. The tobacco particle comprise includes a particle body and a shell wrapped on the particle body. A carrier is distributed in the particle body and/or the shell. The carrier includes at least one of a raw tobacco material, a non-tobacco material, and a porous material. The carrier carries a smoking agent, and the smoking agent includes a tobacco extract and/or an atomizer. In addition, a preparation method of the low-temperature smoking body is further disclosed. The low-temperature smoking body has better smoking stability and uniformity, and the tobacco particles having core-shell structures can effectively solve the problem of liquid leakage.
    Type: Application
    Filed: March 19, 2019
    Publication date: December 30, 2021
    Applicant: CHINA TOBACCO HUNAN INDUSTRIAL CO., LTD.
    Inventors: Qian Chen, Ke Li, Yong Jin, Saibo Yu, Hongmei Fan, Shitai Wang, Chao Tan, Haifeng Tan, Qi Liu, Jianhua Yi, Wen Du, Xinqiang Yin, Xinliang Tan
  • Publication number: 20210315268
    Abstract: A cooling cigarette filter and a cigarette are disclosed. The cooling cigarette filter comprises a cooling section (2). The cooling section (2) comprises a cooling stick (201) formed from paper (5). The cooling stick (201) has one or more holes (202) communicating two ends of the cooling stick. And the surface of the paper (5) is coated with a cooling material. The cooling cigarette filter has the advantages of ensuring the amount of smoke and lowering the temperature of the smoke entering the mouth. Through the combination design of the structure of the cooling stick and the type and amount of the cooling material, the smoke can flow out of a smoke generation section rapidly and smoothly And the temperature of the high-temperature smoke before entering the mouth can be significantly lowered, thereby improving the comfort and satisfaction of smoking.
    Type: Application
    Filed: October 24, 2018
    Publication date: October 14, 2021
    Applicant: CHINA TOBACCO HUNAN INDUSTRIAL CO., LTD.
    Inventors: Wei Luo, Kejun Zhong, Wen Du, Lanying Xie, Liangsheng Qin, Jianhui Wen, Duo Ding, Guoyong Xie, Jianxin Ren, Zhiwei Sun
  • Publication number: 20200082043
    Abstract: A simulation evaluation model of a high voltage ride through capability includes a wind turbine system aerodynamic model, a torque control model, a converter model, and a high voltage fault generating device model connected in sequence; the wind turbine system aerodynamic model is configured to calculate an airflow input power; the torque control model is configured to calculate a rotor electromagnetic torque according to the airflow input power; the high voltage fault generating device model is configured to simulate a high voltage fault and output a predetermined voltage on a low voltage side of a transformer; and the converter model is configured to calculate a stator reactive current, an active power and a reactive power of the wind turbine system during the high voltage fault according to the airflow input power, the rotor electromagnetic torque and the predetermined voltage on the low voltage side of the transformer.
    Type: Application
    Filed: June 29, 2018
    Publication date: March 12, 2020
    Applicant: GUODIAN UNITED POWER TECHNOLOGY COMPANY LTD.
    Inventors: Jingchun CHU, Ling YUAN, Lei PAN, Wenchao CHEN, Chong JIAO, Fa XIE, Wen DU, Yanping LI, Qian WANG, Xuefeng LIN, Yan DING
  • Patent number: 10294259
    Abstract: The present invention provides a phenyl C-glucoside derivative containing a deoxyglucose structure as represented by formula I, preparation method thereof, a pharmaceutical composition comprising the same, and uses thereof in the preparation of medicaments for treating diabetes, wherein substituents R1-R7 are as defined in the specification. The present invention also provides a method for synthesizing the phenyl C-glucoside derivative containing a deoxyglucose structure and an intermediate product. The method has advantages of being simple to manage and of low cost, which is suitable for large-scale industrial production. The present invention further provides a cocrystal of (1S)-1-[4-chloro-3-(4-ethoxybenzyl)phenyl]-1,6-dideoxy-D-glucose and L-proline, and preparation method and uses thereof.
    Type: Grant
    Filed: November 11, 2016
    Date of Patent: May 21, 2019
    Assignee: Tianjin Institute of Pharmaceutical Research
    Inventors: Guilong Zhao, Yuli Wang, Bingni Liu, Yafei Xie, Yuqiang Liu, Peng Liu, Jiang Wu, Jiajia Hou, Wei Wei, Wen Du, Weiren Xu, Lida Tang, Meixiang Zou
  • Publication number: 20170057989
    Abstract: The present invention provides a phenyl C-glucoside derivative containing a deoxyglucose structure as represented by formula I, preparation method thereof, a pharmaceutical composition comprising the same, and uses thereof in the preparation of medicaments for treating diabetes, wherein substituents R1-R7 are as defined in the specification. The present invention also provides a method for synthesizing the phenyl C-glucoside derivative containing a deoxyglucose structure and an intermediate product. The method has advantages of being simple to manage and of low cost, which is suitable for large-scale industrial production. The present invention further provides a cocrystal of (1S)-1-[4-chloro-3-(4-ethoxybenzyl)phenyl]-1,6-dideoxy-D-glucose and L-proline, and preparation method and uses thereof.
    Type: Application
    Filed: November 11, 2016
    Publication date: March 2, 2017
    Applicant: Tianjin Institute of Pharmaceutical Research
    Inventors: Guilong Zhao, Yuli Wang, Bingni Liu, Yafei Xie, Yuqiang Liu, Peng Liu, Jiang Wu, Jiajia Hou, Wei Wei, Wen Du, Weiren Xu, Lida Tang, Meixiang Zou
  • Publication number: 20160377694
    Abstract: The present invention relates to a method and system for correcting acquisition channel of merging unit in power system which belong to the technical field of simulation data collection of power system. The present invention performs data acquisition of each channel firstly, and the acquired data is continuous and effective frequency data, then the collected data is stored to their respective backup areas, and the data storage is stopped until the amount of stored data is up to a predetermined value required for correcting, the data is corrected finally within the respective backup areas of each channel which stops the data storage. The correction process is performed by using corresponding correction module. The method for the channel correction improves the efficiency of channel correction greatly, reduces the correction error, improves the correction precision, and has more simple and convenient operation in comparison to the conventional method for channel correction by modifying hardware parameters.
    Type: Application
    Filed: March 21, 2016
    Publication date: December 29, 2016
    Inventors: Yanfeng Song, Wen Du, Tuofu Zheng, Yingbing Zhao, Chen Shen, Yunsong Xu, Yang Tang, Fang Yang, Liuyi Ye, Yuan Ji
  • Patent number: D919132
    Type: Grant
    Filed: January 4, 2021
    Date of Patent: May 11, 2021
    Inventor: Wen Du
  • Patent number: D939673
    Type: Grant
    Filed: March 19, 2021
    Date of Patent: December 28, 2021
    Inventor: Wen Du
  • Patent number: D941507
    Type: Grant
    Filed: January 4, 2021
    Date of Patent: January 18, 2022
    Inventor: Wen Du
  • Patent number: D998831
    Type: Grant
    Filed: January 11, 2021
    Date of Patent: September 12, 2023
    Inventor: Wen Du
  • Patent number: D1056262
    Type: Grant
    Filed: January 11, 2021
    Date of Patent: December 31, 2024
    Inventor: Wen Du