Patents by Inventor Zhenwei Liu

Zhenwei Liu 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: 11957680
    Abstract: Described herein are compounds that activate pyruvate kinase R, pharmaceutical compositions and methods of use thereof. These compounds are represented by Formula (I): wherein R1, R2, L1, and L2 are as defined herein.
    Type: Grant
    Filed: May 16, 2022
    Date of Patent: April 16, 2024
    Assignee: Agios Pharmaceuticals, Inc.
    Inventors: Giovanni Cianchetta, Tao Liu, Anil Kumar Padyana, Zhihua Sui, Zhenwei Cai, Dawei Cui, Jingjing Ji
  • Publication number: 20240115713
    Abstract: Disclosed are a polyethylene glycol conjugate drug, and a preparation method therefor and the use thereof. Specifically, the present invention relates to a polyethylene glycol conjugate drug represented by formula A or a pharmaceutically acceptable salt thereof, a method for preparing the polyethylene glycol conjugate drug or the pharmaceutically acceptable salt thereof, an intermediate for preparing the polyethylene glycol conjugate drug or the pharmaceutically acceptable salt thereof, a pharmaceutical composition comprising the polyethylene glycol conjugate drug or the pharmaceutically acceptable salt thereof, and the use of the polyethylene glycol conjugate drug or the pharmaceutically acceptable salt thereof in the preparation of a drug.
    Type: Application
    Filed: July 21, 2021
    Publication date: April 11, 2024
    Inventors: Gaoquan LI, Nian LIU, Yongchen PENG, Xiafan ZENG, Gang MEI, Sheng GUAN, Yang GAO, Shuai YANG, Yifeng YIN, Jie LOU, Huiyu CHEN, Kun QIAN, Yusong WEI, Qian ZHANG, Dajun LI, Xiaoling DING, Xiangwei YANG, Liqun HUANG, Xi LIU, Liwei LIU, Zhenwei LI, Kaixiong HU, Hua LIU, Tao TU
  • Publication number: 20240084203
    Abstract: A heat recovery apparatus and process for cracked gas are provided. The cracked gas comprises liquid feedstock cracked gas and gaseous feedstock cracked gas, and the apparatus comprises a heat recovery device for liquid feedstock cracked gas, a heat recovery device for gaseous feedstock cracked gas and a heavy component removal unit. The invention solves the problems in the art, i.e., incomplete heat recovery technology for cracked gas, insufficient control of viscosity of quench oil, high capital investment and large footprint of the equipment, as well as unstable operation and high energy consumption.
    Type: Application
    Filed: January 27, 2022
    Publication date: March 14, 2024
    Inventors: Zhenwei WANG, Liqing YANG, Bairen ZHAO, Mingrui ZHAO, Gang LIU
  • Publication number: 20230238816
    Abstract: A battery charging method includes during charging of a battery, upon determining that a state of charge (SOC) of the battery reaches an SOC range, adjusting, within a range from a minimum boundary value of the SOC range to a set SOC, a charge rate of the battery from a first charge rate down to a second charge rate; and adjusting, within a range from the set SOC to a maximum boundary value of the first SOC range, the charge rate of the battery from the second charge rate up to the first charge rate or a third charge rate.
    Type: Application
    Filed: April 3, 2023
    Publication date: July 27, 2023
    Inventors: Qinglin XIAO, Yichen WU, Zhenwei LIU, Limei YANG, Xiaomei LIU
  • Publication number: 20210285069
    Abstract: The present application relates to a steel for grade R6 offshore mooring chain for use in anchoring and mooring floating bodies with cathodic protection: the chemical composition are C 0.18˜0.24%, N 0.006˜0.024, P 0.005˜0.025, S?0.005, Si 0.15˜0.35, Mn 0.20˜0.40, Cr 1.40˜2.60, Ni 0.80˜3.20, Mo 0.35˜0.75, Cu?0.50, Al?0.02, Ti?0.005, V 0.04˜0.12, Nb 0.02˜0.05, Ca 0.0005˜0.004, O?0.0015, H?0.00015, the balance is Fe: the total content of alloy ?M=(Si+Mn+Cr+Ni+Mo+Cu), 3.4<?M?6.8; the total content of microalloy ?MM=(Ti+Al+Nb+V), 0.065??MM?0.194. The corrosion potential is adjusted to prevent hydrogen embrittlement caused by cathodic overprotection on the basic premise of maintaining the strength, toughness and low corrosion rate of the steel.
    Type: Application
    Filed: May 16, 2019
    Publication date: September 16, 2021
    Applicant: JIANGYIN XINGCHENG SPECIAL STEEL WORKS CO., LTD
    Inventors: Jiang YIN, Xuejun BAO, Zhenwei LIU, Yun BAI, Xiaohong XU, Ming ZHANG, Haidong FAN, Yao LI, Hongli LI, De CHEN, Guorong ZHU, Guoren HU, Tiehua YAO, Qiuhao GU, Yong CUI, Erxin HUANG, Xuewen LIU, LI Liangliang
  • Patent number: 10439398
    Abstract: The invention provides a reactive power optimization system and a method of a power grid based on a double-fish-swarm algorithm. The system includes a power grid state data acquiring module, a reactive power regulating module and a reactive power executing module. The power grid state data acquiring module includes a power grid state data acquiring processor and a relay transmitter. The reactive power regulating module is a control terminal. The reactive power executing module includes generator terminal voltage regulators, transformer tap regulators and reactive power compensation regulators. The method is used for acquiring the initial data to be optimized in the current network; and optimizing the initial data to be optimized in the current network based on a double-fish-swarm algorithm so as to obtain optimal value of control variables in the power grid. According to the method, the distribution network to be optimized can realize reasonable reactive power flow distribution.
    Type: Grant
    Filed: June 16, 2017
    Date of Patent: October 8, 2019
    Assignee: NORTHEASTERN UNIVERSITY
    Inventors: Huaguang Zhang, Jun Yang, Qiuye Sun, Feiye Wu, Xinrui Liu, Dongsheng Yang, Zhiliang Wang, Jian Feng, Bonan Huang, Yanhong Luo, Guotao Hui, Zhenwei Liu
  • Publication number: 20180309294
    Abstract: The invention provides a reactive power optimization system and a method of a power grid based on a double-fish-swarm algorithm. The system includes a power grid state data acquiring module, a reactive power regulating module and a reactive power executing module. The power grid state data acquiring module includes a power grid state data acquisitor and a relay transmitter. The reactive power regulating module is a control terminal. The reactive power executing module includes generator terminal voltage regulators, transformer tap regulators and reactive power compensation regulators. The method is used for acquiring the initial data to be optimized in the current network; and optimizing the initial data to be optimized in the current network based on a double-fish-swam algorithm so as to obtain optimal value of control variables in the power grid. According to the method, the distribution network to be optimized can realize reasonable reactive power flow distribution.
    Type: Application
    Filed: June 16, 2017
    Publication date: October 25, 2018
    Applicant: Northeastern University
    Inventors: Huaguang ZHANG, Jun YANG, Qiuye SUN, Feiye WU, Xinrui LIU, Dongsheng YANG, Zhiliang WANG, Jian FENG, Bonan HUANG, Yanhong LUO, Guotao HUI, Zhenwei LIU
  • Patent number: 9618914
    Abstract: The present invention relates to an energy resource-grid-load automatic control system of smart microgrid and control methods thereof, which belong to the field of microgrid control and electrical technology. The energy resource-grid-load automatic control system includes a distributed renewable energy power generation module, a distributed renewable energy inverter module, a conventional power generation module, a user load module, a bidirectional grid-connected control module, a distributed renewable energy intelligent optimizing power generation control module, an energy storage module, an intelligent energy storage unit adjuster and a storage battery pack.
    Type: Grant
    Filed: March 25, 2014
    Date of Patent: April 11, 2017
    Assignee: Northeastern University
    Inventors: HuaGuang Zhang, QiuYe Sun, Jun Yang, XinRui Liu, ZhiLiang Wang, Fei Teng, Jing Guo, ZhanShan Wang, ZhenWei Liu, YingChun Wang
  • Patent number: 9564754
    Abstract: The present invention relates to an energy router for an energy internet, which comprises a three-phase three-level bi-directional rectifying unit, a six-phase interleaved DC/DC bi-directional conversion unit, a self-excitation soft start push-pull full-bridge DC/DC bi-directional conversion unit, a three-phase resonant soft switching bi-directional inversion unit, a single-phase full-bridge bi-directional inversion unit, a high-voltage DC bus and a low-voltage DC bus. The three-phase three-level bi-directional rectifying unit, the six-phase interleaved DC/DC bi-directional conversion unit, the self-excitation soft start push-pull full-bridge DC/DC bi-directional conversion unit, the three-phase resonant soft switching bi-directional inversion unit and the single-phase full-bridge bi-directional inversion unit each have three energy flow operating modes: a forward conduction, a reverse conduction and a non-conduction.
    Type: Grant
    Filed: May 20, 2015
    Date of Patent: February 7, 2017
    Assignee: NORTHEASTERN UNIVERSITY
    Inventors: Qiuye Sun, Huaguang Zhang, Dazhong Ma, Bonan Huang, Lei Chen, Heng Du, Zhenwei Liu, Fei Teng, Guotao Hui
  • Publication number: 20160241137
    Abstract: The present invention relates to an energy router for an energy internet, which comprises a three-phase three-level bi-directional rectifying unit, a six-phase interleaved DC/DC bi-directional conversion unit, a self-excitation soft start push-pull full-bridge DC/DC bi-directional conversion unit, a three-phase resonant soft switching bi-directional inversion unit, a single-phase full-bridge bi-directional inversion unit, a high-voltage DC bus and a low-voltage DC bus. The three-phase three-level bi-directional rectifying unit, the six-phase interleaved DC/DC bi-directional conversion unit, the self-excitation soft start push-pull full-bridge DC/DC bi-directional conversion unit, the three-phase resonant soft switching bi-directional inversion unit and the single-phase full-bridge bi-directional inversion unit each have three energy flow operating modes: a forward conduction, a reverse conduction and a non-conduction.
    Type: Application
    Filed: May 20, 2015
    Publication date: August 18, 2016
    Inventors: Qiuye SUN, Huaguang ZHANG, Dazhong MA, Bonan HUANG, Lei CHEN, Heng DU, Zhenwei LIU, Fei TENG, Guotao HUI
  • Patent number: 9003530
    Abstract: Embodiments of the present invention provide an information processing method, device, and server, relating to the technical field of communications, and solving the problem that a user continuously releasing illegal information in the network. The method comprises: receiving network information; determining, according to the network information, a rating result of a network object corresponding to the network information; controlling the network object according to the rating result of the network object corresponding to the network information. Embodiments of the present invention further provide an information processing device and server. The present invention is applied to the network information management.
    Type: Grant
    Filed: July 13, 2012
    Date of Patent: April 7, 2015
    Assignee: Tencent Technology (Shenzhen) Company Limited
    Inventors: Zhihao Zheng, Zhu Liang, Yu Chen, Zhenwei Liu
  • Patent number: 8981592
    Abstract: Disclosed is a transformer control device and method based on a three-dimensional zone diagram policy. The method includes: setting transformers, including a transformer A and a transformer B; collecting three-phase voltage data and three-phase current data in a power system; rectifying the collected three-phase voltage data and the three-phase current data; transferring the data to the latches in a time-transfer method; transferring the data to an A/D converter of a processor to convert analog signals to digital signals; constructing a three-dimensional zone diagram in the processor; determining transformer operating conditions according to positions of points formed by voltage, reactive power factor and substation load; and adjusting the transformers.
    Type: Grant
    Filed: March 7, 2012
    Date of Patent: March 17, 2015
    Assignees: Northeastern University
    Inventors: Huaguang Zhang, Qiuye Sun, Jun Yang, Bin Jiang, Lianzhi Wang, Dazhong Ma, Zhenwei Liu, Fei Teng, Zhiqiang He, Xintong Li
  • Patent number: 8965747
    Abstract: An automatic three-phase unbalanced load compensation experimental device includes an automatic compensation device, a load simulation part, and detection, display and control parts. The automatic compensation device includes power capacitors and intelligent grouping compound switches. The detection, display and control part includes a plurality of current transformers, molded case circuit breakers, a three-phase digital display ammeter, a three-phase electric power monitoring instrument, a protocol conversion module, RS-485 buses, Ethernet cables and an upper computer. The load simulation part includes phase A, B and C loads which are in star connection and are same in component and circuit connection, an analog output module and a relay output module. A power monitoring instrument and digital ammeter are connected to the grid by circuit breaker and the plurality of current transformers. The automatic compensation device and load simulation part are connected to the grid in parallel.
    Type: Grant
    Filed: May 30, 2012
    Date of Patent: February 24, 2015
    Assignees: Northeastern University, Huaguang Zhang, Qiuye Sun, Zhenwei Liu, Tieyan Zhang, Xiangping Meng, Qingqi Zhao, Jianguo Zhou, Jun Yang, Dazhong Ma, Yan Zhao, Xinrui Liu, Jing Guo
    Inventors: Huaguang Zhang, Qiuye Sun, Zhenwei Liu, Tieyan Zhang, Xiangping Meng, Qingqi Zhao, Jianguo Zhou, Jun Yang, Dazhong Ma, Yan Zhao, Xinrui Liu, Jing Guo
  • Publication number: 20140298463
    Abstract: Embodiments of the present invention provide an information processing method, device, and server, relating to the technical field of communications, and solving the problem that a user continuously releasing illegal information in the network. The method comprises: receiving network information; determining, according to the network information, a rating result of a network object corresponding to the network information; controlling the network object according to the rating result of the network object corresponding to the network information. Embodiments of the present invention further provide an information processing device and server. The present invention is applied to the network information management.
    Type: Application
    Filed: July 13, 2012
    Publication date: October 2, 2014
    Applicant: TENCENT TECHNOLOGY (SHENZHEN) COMPANY LIMITED
    Inventors: Zhihao Zheng, Zhu Liang, Yu Chen, Zhenwei Liu
  • Publication number: 20140297051
    Abstract: The present invention relates to an energy resource-grid-load automatic control system of smart microgrid and control methods thereof, which belong to the field of microgrid control and electrical technology. The energy resource-grid-load automatic control system comprises a distributed renewable energy power generation module, a distributed renewable energy inverter module, a conventional power generation module, a user load module, a bidirectional grid-connected control module, a distributed renewable energy intelligent optimizing power generation control module, an energy storage module, an intelligent energy storage unit adjuster and a storage battery pack.
    Type: Application
    Filed: March 25, 2014
    Publication date: October 2, 2014
    Applicant: Northeastern University
    Inventors: HuaGuang Zhang, QiuYe Sun, Jun Yang, XinRui Liu, ZhiLiang Wang, Fei Teng, Jing Guo, ZhanShan Wang, ZhenWei Liu, YingChun Wang
  • Publication number: 20130076130
    Abstract: Disclosed is a transformer control device and method based on a three-dimensional zone diagram policy. The method includes: setting transformers, including a transformer A and a transformer B; collecting three-phase voltage data and three-phase current data in a power system; rectifying the collected three-phase voltage data and the three-phase current data; transferring the data to the latches in a time-transfer method; transferring the data to an A/D converter of a processor to convert analog signals to digital signals; constructing a three-dimensional zone diagram in the processor; determining transformer operating conditions according to positions of points formed by voltage, reactive power factor and substation load; and adjusting the transformers.
    Type: Application
    Filed: March 7, 2012
    Publication date: March 28, 2013
    Inventors: Huaguang ZHANG, Qiuye Sun, Jun Yang, Bin Jiang, Lianzhi Wang, Dazhong Ma, Zhenwei Liu, Fei Teng, Zhiqiang He, Xintong Li
  • Publication number: 20130054204
    Abstract: Disclosed are an automatic three-phase unbalanced load compensation experimental device and its control method. The experimental device comprises an automatic compensation device, a load simulation part, and detection, display and control parts. The automatic compensation device comprises power capacitors and intelligent grouping compound switches; the detection, display and control part comprises current transformers, molded case circuit breakers, a three-phase digital display ammeter, a three-phase electric power monitoring instrument, a protocol conversion module, 485 buses, Ethernet cables and an upper computer; the load simulation part comprises phase A, B and C loads which are in star connection and are same in component and circuit connection, an analog output module and a relay output module. Power monitoring instrument and digital ammeter are connected to the grid by circuit breaker and current transformer.
    Type: Application
    Filed: May 30, 2012
    Publication date: February 28, 2013
    Applicants: NORTHEASTERN UNIVERSITY
    Inventors: Huaguang Zhang, Qiuye Sun, Zhenwei Liu, Tieyan Zhang, Xiangping Meng, Qingqi Zhao, Jianguo Zhou, Jun Yang, Dazhong Ma, Yan Zhao, Xinrui Liu, Jing Guo
  • Patent number: D869505
    Type: Grant
    Filed: December 27, 2017
    Date of Patent: December 10, 2019
    Assignee: Hangzhou Sanhua Research Institute Co., Ltd.
    Inventors: Long Lin, Zhi Wu, Zhenwei Liu, Yumin Yu