Patents by Inventor Libao Xu

Libao Xu 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: 11952355
    Abstract: Provided are a method of preparing a malononitrile oxime ether compound and an intermediate compound. The malononitrile oxime ether compound has a structure as shown in formula (VII), wherein W is selected from aryl or heteroaryl. The preparation method comprises: reacting a first raw material with a second raw material in the presence of a first solvent and a catalyst to obtain the intermediate compound, wherein the first raw material has a structure as shown in formula (IV), and the second raw material has a structure as shown in formula (V); and subjecting the intermediate compound, and a dehydrant to a dehydration reaction in the present of a second solvent to obtain the malononitrile oxime ether compound. Furthermore, the malononitrile oxime ether compound is obtained through one-step dehydration reaction. using the preparation method, is advantageous for improving the yield of malononitrile oxime ethers and reducing the cost.
    Type: Grant
    Filed: June 17, 2019
    Date of Patent: April 9, 2024
    Assignee: Shenyang Sinochem Agrochemicals R&D Co., Ltd.
    Inventors: Hongfei Wu, Xueming Cheng, Libao Xu, Chunxiao Guo, Jingbo Xu, Ningning Sun, Haibo Yu
  • Patent number: 11891371
    Abstract: The present invention belongs to the fields of insecticides, acaricides and fungicides, and particularly relates to a piperonylic acid derivative, and preparation and application thereof. The structure is shown in a general formula I, and the definition of each substituent in the formula is described in the description. The compound of the general formula I exhibits excellent insecticidal, acaricidal and fungicidal activity and can be used for controlling various harmful insects, mites or fungus.
    Type: Grant
    Filed: June 22, 2018
    Date of Patent: February 6, 2024
    Assignees: SHENYANG SINOCHEM AGROCHEMICALS R&D CO., LTD, JIANGSU YANGNONG CHEMICAL CO., LTD.
    Inventors: Hongfei Wu, Jingbo Xu, Shaowu Liu, Haibo Yu, Xiuhui Chang, Qin Sun, Libao Xu, Xueming Cheng, Hao Yang, Ningning Sun
  • Publication number: 20230271919
    Abstract: The present invention belongs to the field of agricultural acaricides, and particularly relates to a substituted phenyl sulfide compound and an application thereof. The substituted phenyl sulfide compound is as represented in general formula I. Definitions of substituted groups in the formula are given in the description. The compound of the general formula I has excellent acaricidal activity and can be used for preventing and controlling various mites.
    Type: Application
    Filed: July 13, 2021
    Publication date: August 31, 2023
    Inventors: Libao XU, Hongfei WU, Xiuhui CHANG, Haibo YU, Yuquan SONG, Jingbo XU, Chunxiao GUO, Xueming CHENG, Ningning SUN
  • Publication number: 20220400678
    Abstract: The present invention discloses an oxime ether compound with novel structure. The structure is shown in general formula I. The definition of each substituent in the formula is provided in the description. The compound of general formula I has excellent microbicidal 1 activity, and has good control effects on plant bacterial diseases and fungal diseases. The present invention comprises an application of the compound of the general formula I as a microbicide in agriculture and other fields.
    Type: Application
    Filed: November 2, 2020
    Publication date: December 22, 2022
    Inventors: Xueming CHENG, Haibo YU, Liang CHEN, Hongfei WU, Geng SUN, Chunxiao GUO, Libao XU, Jingbo XU, Ningning SUN
  • Publication number: 20220202011
    Abstract: The present invention belongs to the fields of insecticides and acaricides, and particularly relates to a piperonylic acid derivative and application thereof. The structure is shown in a general formula I, and the definition of each substituent in the formula is described in the description. The compound of the general formula I has excellent insecticidal and acaricidal activity and can be used for controlling various pests and mites.
    Type: Application
    Filed: March 4, 2022
    Publication date: June 30, 2022
    Inventors: Hongfei WU, Jingbo XU, Shaowu LIU, Haibo YU, Lanfeng BAN, Libao XU, Xueming CHENG, Chunxiao GUO, Ningning SUN
  • Publication number: 20220055996
    Abstract: Provided are a method of preparing a malononitrile oxime ether compound and an intermediate compound. The malononitrile oxime ether compound has a structure as shown in formula (VII), wherein W is selected from aryl or heteroaryl. The preparation method comprises steps: reacting a first raw material with a second raw material in the presence of a first solvent and a catalyst to obtain the intermediate compound, wherein the first raw material has a structure as shown in formula (IV), and the second raw material has a structure as shown in formula (V); and subjecting the intermediate compound as shown in formula (VI), and, a dehyclrant to a dehydrantion reaction in the presence of a second solvent to obtain the malononitrile oxime ether compound. In the preparation process for the intermediate, a cheaper cyanoacetamide is used as a raw material, the reaction conditions are mild. Moreover, the yield of the intermediate compound is high and the cost of the process is low.
    Type: Application
    Filed: June 17, 2019
    Publication date: February 24, 2022
    Inventors: Hongfei WU, Xueming CHENG, Libao XU, Chunxiao GUO, Jingbo XU, Ningning SUN, Haibo YU
  • Publication number: 20200181107
    Abstract: The present invention belongs to the fields of insecticides, acaricides and fungicides, and particularly relates to a piperonylic acid derivative, and preparation and application thereof. The structure is shown in a general formula I, and the definition of each substituent in the formula is described in the description. The compound of the general formula I exhibits excellent insecticidal, acaricidal and fungicidal activity and can be used for controlling various harmful insects, mites or fungus.
    Type: Application
    Filed: June 22, 2018
    Publication date: June 11, 2020
    Applicant: SHENYANG SINOCHEM AGROCHEMICALS R&D CO., LTD.
    Inventors: Hongfei WU, Jingbo XU, Shaowu LIU, Haibo YU, Xiuhui CHANG, Qin SUN, Libao XU, Xueming CHENG, Hao YANG, Ningning SUN
  • Patent number: 10611742
    Abstract: The present invention relates to a compound represented by Formula I, a racemate or optical isomer thereof, or a pharmaceutically acceptable salt, a solvate or a hydrate thereof, a pharmaceutical composition comprising the compound, and a use thereof in the manufacture of a medicament for preventing and/or treating a disease or disorder associated with a viral infection.
    Type: Grant
    Filed: November 24, 2016
    Date of Patent: April 7, 2020
    Assignee: Institute of Pharmacology and Toxicology Academy of Military Medical Sciences P.L.A. China
    Inventors: Song Li, Junhai Xiao, Libao Xu, Ruiyuan Cao, Fangyuan Cao, Hongliang Wang, Wu Zhong, Zhibing Zheng, Yunde Xie, Xingzhou Li, Xinbo Zhou, Xiaokui Wang
  • Patent number: 10456299
    Abstract: A goggles system includes an inner frame dimensioned and contoured for positioning against a wearer's face with a plurality of interchangeable lens assemblies, where each lens assembly is removably attachable to the inner frame by an engagement mechanism that includes at least one tongue and groove attachment and at least one magnetic attachment. The lens(es) of each interchangeable lens assembly may be the same as or different from each other.
    Type: Grant
    Filed: December 15, 2016
    Date of Patent: October 29, 2019
    Assignee: Maui Jim, Inc.
    Inventors: Molly McCall Hilton, Benjamin Russell Peters, Pengfei Li, Libao Xu, Michael Patrick Croke, Daniel Scot Barone, Michael Thomas Lewis
  • Publication number: 20180370928
    Abstract: The present invention relates to a compound represented by Formula I, a racemate or optical isomer thereof, or a pharmaceutically acceptable salt, a solvate or a hydrate thereof, a pharmaceutical composition comprising the compound, and a use thereof in the manufacture of a medicament for preventing and/or treating a disease or disorder associated with a viral infection.
    Type: Application
    Filed: November 24, 2016
    Publication date: December 27, 2018
    Applicant: Institute of Pharmacology and Toxicology Academy of Military Medical Sciences P.L.A. China
    Inventors: Song LI, Junhai XIAO, Libao XU, Ruiyuan CAO, Fangyuan CAO, Hongliang WANG, Wu ZHONG, Zhibing ZHENG, Yunde XIE, Xingzhou LI, Xinbo ZHOU, Xiaokui WANG
  • Publication number: 20180168865
    Abstract: A goggles system includes an inner frame dimensioned and contoured for positioning against a wearer's face with a plurality of interchangeable lens assemblies, where each lens assembly is removably attachable to the inner frame by an engagement mechanism that includes at least one tongue and groove attachment and at least one magnetic attachment. The lens(es) of each interchangeable lens assembly may be the same as or different from each other.
    Type: Application
    Filed: December 15, 2016
    Publication date: June 21, 2018
    Applicant: Maui Jim, Inc.
    Inventors: Molly McCall Hilton, Benjamin Russell Peters, Pengfei Li, Libao Xu, Michael Patrick Croke, Daniel Scot Barone, Michael Thomas Lewis
  • Patent number: 9856212
    Abstract: The present disclosure relates to acaricide, specifically to a kind of biphenyl compounds and uses thereof. The general formula I is as follows: wherein: each substituent is defined as that in the description. The compounds of the general formula I show high acaricidal activities and can be used for controlling various harmful mites.
    Type: Grant
    Filed: April 18, 2017
    Date of Patent: January 2, 2018
    Assignee: Shenyang Sinochem Agrochemicals R&D Co., Ltd.
    Inventors: Lixin Zhang, Jing Zhang, Lanfeng Ban, Hongfei Wu, Yuquan Song, Haibo Yu, Peng Li, Jingbo Xu, Libao Xu