Patents by Inventor Lidong Xing

Lidong Xing 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).

  • Downhole drilling tool system of torque self-balancing
    Patent number: 10724300
    Abstract: The present invention relates to a downhole drilling tool system of torque self-balancing and belongs to a technical field of drilling engineering equipment. The drilling tool system consists of an assembly of internal and external drill bits, power components, a pressure adjustment system for internal and external drill bits, a mud circulating system, and an unfreezing system.
    Type: Grant
    Filed: February 16, 2018
    Date of Patent: July 28, 2020
    Assignee: Jilin University
    Inventors: Ke Gao, Youhong Sun, Zhigang Wang, Yan Zhao, Kun Bo, Xiaobo Xie, Haiyong Wang, Xiaochu Wang, Zhao Liu, Yafei Wang, Hangkai Chen, Saiyu Peng, Yingchao Xu, Lidong Xing
  • DOWNHOLE DRILLING TOOL SYSTEM OF TORQUE SELF-BALANCING
    Publication number: 20190063157
    Abstract: The present invention relates to a downhole drilling tool system of torque self-balancing and belongs to a technical field of drilling engineering equipment. The drilling tool system consists of an assembly of internal and external drill bits, power components, a pressure adjustment system for internal and external drill bits, a mud circulating system, and an unfreezing system.
    Type: Application
    Filed: February 16, 2018
    Publication date: February 28, 2019
    Applicant: Jilin University
    Inventors: Ke Gao, Youhong Sun, Zhigang Wang, Yan Zhao, Kun Bo, Xiaobo Xie, Haiyong Wang, Xiaochu Wang, Zhao Liu, Yafei Wang, Hangkai Chen, Saiyu Peng, Yingchao Xu, Lidong Xing
  • General process for the preparation of 6-substituted or 5,6-disubstituted derivatives of 2-amino-isonicotinic acid
    Patent number: 10106506
    Abstract: This invention relates to a novel synthetic method for the preparation of 6-substituted or 5,6-disubstituted derivatives of 2-amino-isonicotinic acid.
    Type: Grant
    Filed: July 1, 2016
    Date of Patent: October 23, 2018
    Assignee: Boehringer Ingelheim International GmbH
    Inventors: Weitong Dong, Da Deng, Yan Fu, Xiangle Jin, Lidong Xing, Jun Yan
  • A GENERAL PROCESS FOR THE PREPARATION OF 6-SUBSTITUTED OR 5,6-DISUBSTITUTED DERIVATIVES OF 2-AMINO-ISONICOTINIC ACID
    Publication number: 20180186741
    Abstract: This invention relates to a novel synthetic method for the preparation of 6-substituted or 5,6-disubstituted derivatives of 2-amino-isonicotinic acid.
    Type: Application
    Filed: July 1, 2016
    Publication date: July 5, 2018
    Inventors: Weitong DONG, Da DENG, Yan FU, Xiangle JIN, Lidong XING, Jun YAN
  • Process for the manufacture of 3-oxo-tetrahydrofuran
    Patent number: 9399629
    Abstract: This invention relates to a novel method for the preparation of 3-oxo-tetrahydrofuran comprising oxidizing 3-hydroxy-tetrahydrofuran in the presence of a catalytic amount of 2,2,6,6-tetramethyl-piperidine-N-oxyl (TEMPO) with trichloroisocyanuric acid.
    Type: Grant
    Filed: March 11, 2014
    Date of Patent: July 26, 2016
    Assignee: BOEHRINGER INGELHEIM INTERNATIONAL GMBH
    Inventors: Lidong Xing, Weitong Dong, Jun Lu, Ulrich Scholz, Jun Yan, Jinsong Yang
  • NOVEL PROCESS FOR THE MANUFACTURE OF 3-OXO-TETRAHYDROFURAN
    Publication number: 20140275579
    Abstract: This invention relates to a novel method for the preparation of 3-oxo-tetrahydrofuran comprising oxidizing 3-hydroxy-tetrahydrofuran in the presence of a catalytic amount of 2,2,6,6-tetramethyl-piperidine-N-oxyl (TEMPO) with trichloroisocyanuric acid.
    Type: Application
    Filed: March 11, 2014
    Publication date: September 18, 2014
    Applicant: Boehringer Ingelheim International GmbH
    Inventors: Lidong XING, Weitong DONG, Jun LU, Ulrich SCHOLZ, Jun YAN, Jinsong YANG
  • DEUTERIUM-SUBSTITUTED OMEGA-DIPHENYLUREA AND DERIVATIVES THEREOF AND PHARMACEUTICAL COMPOSITIONS COMPRISING THE COMPOUNDS
    Publication number: 20130012548
    Abstract: This invention relates to deuterated ?-diphenylurea and derivatives and pharmaceutical acceptable salts thereof. And the pharmaceutical compositions comprising the pharmaceutically acceptable carrier and the deuterium-substituted ?-diphenylurea and derivatives and pharmaceutical acceptable salts thereof are also provided. The deuterium-substituted diphenylurea can be used in treatment or prevention of cancer and other related diseases.
    Type: Application
    Filed: March 18, 2010
    Publication date: January 10, 2013
    Applicant: SUZHOU ZELGEN BIOPHARMACEUTICAL CO., LTD.
    Inventors: Lidong Xing, Zelin Sheng, Guozhang Wu, Huiping Lu