Patents by Inventor Pingli Liu

Pingli 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).

  • Publication number: 20220056034
    Abstract: The present invention is related to processes for preparing itacitinib, or a salt thereof, and related synthetic intermediates related thereto.
    Type: Application
    Filed: August 17, 2021
    Publication date: February 24, 2022
    Inventors: Jiacheng Zhou, Shili Chen, Pingli Liu, David J. Meloni, Yongchun Pan, Naijing Su, Michael Xia
  • Publication number: 20220056035
    Abstract: The present invention is related to processes for preparing ruxolitinib, or a salt thereof, and related synthetic intermediates related thereto.
    Type: Application
    Filed: August 17, 2021
    Publication date: February 24, 2022
    Inventors: Jiacheng Zhou, Shili Chen, Pingli Liu, David J. Meloni, James M. Parks, Yongchun Pan, Naijing Su, Michael Xia
  • Publication number: 20220024934
    Abstract: The present application provides processes for preparing (R)-4-(3-((S)-1-(4-amino-3-methyl-1H-pyrazolo[3,4-d]pyrimidin-1-yl)ethyl)-5-chloro-2-ethoxy-6-fluorophenyl)pyrrolidin-2-one, which is useful as an inhibitor phosphoinositide 3-kinase-delta (PI3K?), as well as a salt form and intermediates related thereto.
    Type: Application
    Filed: July 1, 2021
    Publication date: January 27, 2022
    Inventors: Lei Qiao, Lingkai Weng, Chongsheng Eric Shi, David Meloni, Qiyan Lin, Michael Xia, Vaqar Sharief, William Frietze, Zhongjiang Jia, Yongchun Pan, Pingli Liu, Tai-Yuen Yue, Jiacheng Zhou
  • Publication number: 20220010665
    Abstract: The present disclosure discloses a rotary downhole cavitation generator, including an upper connector, a lower connector, and a casing. Said casing is internally provided with a transmission shaft, an alignment bearing, a drive assembly, a thrust bearing, a rotating disk, a rectification cylinder, an inner sleeve, and an outer sleeve. Said transmission shaft is provided with a deep hole, a diversion hole radially communicating with said deep hole, and a diversion channel radially communicating with said deep hole. Said alignment bearing and said drive assembly are sleeved on an upper end of said transmission shaft, and said rotating disk, said inner sleeve, and said thrust bearing are sleeved on a lower end of said transmission shaft. Said rectification cylinder and said outer sleeve are mounted on an inner wall of said casing, and said upper connector and said lower connector are respectively connected to both ends of said casing.
    Type: Application
    Filed: June 28, 2021
    Publication date: January 13, 2022
    Inventors: Ruyi GOU, Weiyu CHEN, Liqiang ZHAO, Pingli LIU, Zhifeng LUO, Nanlin ZHANG
  • Patent number: 11207302
    Abstract: The present invention is directed to 1, 2, 5-oxadiazole derivatives, and compositions of the same, which are inhibitors of indoleamine 2, 3-dioxygenase and are useful in the treatment of cancer and other disorders, and to the processes and intermediates for making such 1, 2, 5-oxadiazole derivatives.
    Type: Grant
    Filed: April 15, 2020
    Date of Patent: December 28, 2021
    Assignees: Incyte Corporation, Incyte Holdings Corporation
    Inventors: Andrew P. Combs, Eddy W. Yue, Richard B. Sparks, Wenyu Zhu, Jiacheng Zhou, Qiyan Lin, Lingkai Weng, Tai-Yuen Yue, Pingli Liu
  • Patent number: 11187250
    Abstract: The present invention relates to an automatic cleaning device for suction port of electric submersible pump. The pipe string joint is connected between the oil pipe and the electric submersible pump. A plurality of oil drain passage inlets, steel balls, return springs, sealing plugs and oil drain passage outlets are evenly distributed in circumferential direction of a boss. The upper end of the connecting pipe is connected with the outlet of the oil drain passage, and the lower end is connected with the nozzle. The retaining ring secures the connecting pipe on the housing of the electric submersible pump. A high-pressure fluid ejected from the nozzle directly acts on the suction port of the electric submersible pump. The present invention can automatically clean the suction port of the electric submersible pump by relying on the pressure difference between the outlet and the suction port of the electric submersible pump.
    Type: Grant
    Filed: June 11, 2021
    Date of Patent: November 30, 2021
    Assignee: SOUTHWEST PETROLEUM UNIVERSITY
    Inventors: Ruyi Gou, Weiyu Chen, Liqiang Zhao, Pingli Liu, Zhifeng Luo, Juan Du
  • Patent number: 11174425
    Abstract: The present invention relates to a carbonate reservoir filtration-loss self-reducing acid fracturing method.
    Type: Grant
    Filed: June 24, 2020
    Date of Patent: November 16, 2021
    Assignee: SOUTHWEST PETROLEUM UNIVERSITY
    Inventors: Weiyu Chen, Liqiang Zhao, Zhifeng Luo, Juan Du, Pingli Liu, Nianyin Li, Kun Xu
  • Publication number: 20210301835
    Abstract: The present invention relates to an automatic cleaning device for suction port of electric submersible pump. The pipe string joint is connected between the oil pipe and the electric submersible pump. A plurality of oil drain passage inlets, steel balls, return springs, sealing plugs and oil drain passage outlets are evenly distributed in circumferential direction of a boss. The upper end of the connecting pipe is connected with the outlet of the oil drain passage, and the lower end is connected with the nozzle. The retaining ring secures the connecting pipe on the housing of the electric submersible pump. A high-pressure fluid ejected from the nozzle directly acts on the suction port of the electric submersible pump. The present invention can automatically clean the suction port of the electric submersible pump by relying on the pressure difference between the outlet and the suction port of the electric submersible pump.
    Type: Application
    Filed: June 11, 2021
    Publication date: September 30, 2021
    Applicant: SOUTHWEST PETROLEUM UNIVERSITY
    Inventors: Ruyi Gou, Weiyu Chen, Liqiang Zhao, Pingli Liu, Zhifeng Luo, Juan Du
  • Publication number: 20210253584
    Abstract: The present invention is related to processes for preparing chiral substituted pyrazolyl pyrrolo[2,3-d]pyrimidines of Formula III, and related synthetic intermediate compounds. The chiral substituted pyrazolyl pyrrolo[2,3-d]pyrimidines are useful as inhibitors of the Janus Kinase family of protein tyrosine kinases (JAKs) for treatment of inflammatory diseases, myeloproliferative disorders, and other diseases.
    Type: Application
    Filed: February 16, 2021
    Publication date: August 19, 2021
    Inventors: Jiacheng Zhou, Pingli Liu, Qiyan Lin, Brian W. Metcalf, David Meloni, Yongchun Pan, Michael Xia, Mei Li, Tai-Yuen Yue, James D. Rodgers, Haisheng Wang
  • Patent number: 11091480
    Abstract: The present application relates to crystalline solid forms of an inhibitor of BET proteins such as BRD2, BRD3, BRD4, and BRD-t, including methods of preparation thereof, and intermediates in the preparation thereof, where the compound is useful in the treatment of diseases such as cancer.
    Type: Grant
    Filed: March 24, 2020
    Date of Patent: August 17, 2021
    Assignee: Incyte Corporation
    Inventors: Shili Chen, Zhongjiang Jia, Pingli Liu, Lei Qiao, Yongzhong Wu, Jiacheng Zhou, Qun Li
  • Publication number: 20210128568
    Abstract: The present invention is directed to dihydrochloric acid and dibenzenesulfonic acid salts of the c-Met kinase inhibitor 2-fluoro-N-methyl-4-[7-(quinolin-6-ylmethyl)-imidazo[1,2-b][1,2,4]triazin-2-yl]benzamide, and pharmaceutical compositions thereof, useful in the treatment of cancer and other diseases related to the dysregulation of kinase pathways. The present invention further relates to processes and intermediates for preparing 2-fluoro-N-methyl-4-[7-(quinolin-6-ylmethyl)imidazo[1,2-b][1,2,4]triazin-2-yl]benzamide, and salts thereof.
    Type: Application
    Filed: September 8, 2020
    Publication date: May 6, 2021
    Inventors: Lingkai Weng, Lei Qiao, Jiacheng Zhou, Pingli Liu, Yongchun Pan
  • Publication number: 20210105998
    Abstract: The present application relates to crystalline solid forms of an inhibitor of BET proteins such as BRD2, BRD3, BRD4, and BRD-t, including methods of preparation thereof, and intermediates in the preparation thereof, where the compound is useful in the treatment of diseases such as cancer.
    Type: Application
    Filed: December 18, 2020
    Publication date: April 15, 2021
    Inventors: Shili Chen, Zhongjiang Jia, Pingli Liu, Lei Qiao, Yongzhong Wu, Jiacheng Zhou, Qun Li
  • Publication number: 20210079016
    Abstract: The present invention relates to an amorphous solid form of (4S)-7-(3,5-dimethylisoxazol-4-yl)-4-pyridin-2-yl-4,5-dihydroimidazo[1,5,4-de][1,4]benzoxazin-2(1H)-one, and processes for its preparation, which is an inhibitor of BET proteins such as BRD2, BRD3, BRD4, and BRD-t and is useful in the treatment of various diseases such as cancer.
    Type: Application
    Filed: November 19, 2020
    Publication date: March 18, 2021
    Inventors: Shili Chen, William Frietze, Zhongjiang Jia, Pingli Liu, Jiacheng Zhou
  • Publication number: 20210040090
    Abstract: The present invention relates to salt forms of the PD-1/PD-L1 inhibitor (R)-1-((7-cyano-2-(3?-(3-(((R)-3-hydroxypyrrolidin-1-yl)methyl)-1,7-naphthyridin-8-ylamino)-2,2?-dimethylbiphenyl-3-yl)benzo[d]oxazol-5-yl)methyl)pyrrolidine-3-carboxylic acid, including methods of preparation thereof, where the compound is useful in the treatment of various diseases including infectious diseases and cancer.
    Type: Application
    Filed: August 7, 2020
    Publication date: February 11, 2021
    Inventors: Zhongjiang Jia, Pingli Liu, David J. Meloni, Yongchun Pan, Yongzhong Wu, Jiacheng Zhou, Qun Li
  • Publication number: 20210030722
    Abstract: The present invention is directed to 1,2,5-oxadiazole derivatives, and compositions of the same, which are inhibitors of indoleamine 2,3-dioxygenase and are useful in the treatment of cancer and other disorders, and to the processes and intermediates for making such 1,2,5-oxadiazole derivatives.
    Type: Application
    Filed: April 15, 2020
    Publication date: February 4, 2021
    Inventors: Andrew P. Combs, Eddy W. Yue, Richard B. Sparks, Wenyu Zhu, Jiacheng Zhou, Qiyan Lin, Lingkai Weng, Tai-Yuen Yue, Pingli Liu
  • Patent number: 10899736
    Abstract: This invention relates to processes and intermediates for making {1-{1-[3-fluoro-2-(trifluoromethyl)isonicotinoyl]piperidin-4-yl}-3-[4-(7H-pyrrolo[2,3-d]pyrimidin-4-yl)-1H-pyrazol-1-yl]azetidin-3-yl}acetonitrile, useful in the treatment of diseases related to the activity of Janus kinases (JAK) including inflammatory disorders, autoimmune disorders, cancer, and other diseases.
    Type: Grant
    Filed: January 29, 2019
    Date of Patent: January 26, 2021
    Assignee: Incyte Corporation
    Inventors: Dengjin Wang, Pingli Liu, Yongzhong Wu, Jiacheng Zhou
  • Publication number: 20210017445
    Abstract: The present invention relates to a carbonate reservoir filtration-loss self-reducing acid fracturing method.
    Type: Application
    Filed: June 24, 2020
    Publication date: January 21, 2021
    Inventors: Weiyu CHEN, Liqiang ZHAO, Zhifeng LUO, Juan DU, Pingli LIU, Nianyin LI, Kun XU
  • Patent number: 10858372
    Abstract: The present invention relates to an amorphous solid form of (4S)-7-(3,5-dimethylisoxazol-4-yl)-4-pyridin-2-yl-4,5-dihydroimidazo[1,5,4-de][1,4]benzoxazin-2(1H)-one, and processes for its preparation, which is an inhibitor of BET proteins such as BRD2, BRD3, BRD4, and BRD-t and is useful in the treatment of various diseases such as cancer.
    Type: Grant
    Filed: May 29, 2019
    Date of Patent: December 8, 2020
    Assignee: Incyte Corporation
    Inventors: Shili Chen, William Frietze, Zhongjiang Jia, Pingli Liu, Jiacheng Zhou
  • Patent number: 10799509
    Abstract: The present invention is directed to dihydrochloric acid and dibenzenesulfonic acid salts of the c-Met kinase inhibitor 2-fluoro-N-methyl-4-[7-(quinolin-6-ylmethyl)-imidazo[1,2-b][1,2,4]triazin-2-yl]benzamide, and pharmaceutical compositions thereof, useful in the treatment of cancer and other diseases related to the dysregulation of kinase pathways. The present invention further relates to processes and intermediates for preparing 2-fluoro-N-methyl-4-[7-(quinolin-6-ylmethyl)imidazo[1,2-b][1,2,4]triazin-2-yl]benzamide, and salts thereof.
    Type: Grant
    Filed: February 7, 2019
    Date of Patent: October 13, 2020
    Assignees: Incyte Corporation, Incyte Holdings Corporation
    Inventors: Lingkai Weng, Lei Qiao, Jiacheng Zhou, Pingli Liu, Yongchun Pan
  • Publication number: 20200300082
    Abstract: The invention discloses a calculation method for dynamic fluid loss of acid-etched fracture considering wormhole propagation, which is applied to pad acid fracturing process, comprising the following steps: Step 1: dividing the construction time T of injecting acid fluid into artificial fracture into m time nodes at equal intervals, then the time step ?t=T/m and tn=n?t, where, n=0, 1, 2, 3, . . . , m, and to is the initial time; Step 2: calculating the fluid loss velocity vl(0) in the fracture at t0; Step 3: calculating the flowing pressure distribution P(n) in the fracture at tn; Step 4: calculating the width wa(n) of acid-etched fracture at tn; Step 5: calculating the wormhole propagation and the fluid loss velocity vl(n) at tn; Step 6: substituting the fluid loss velocity vl(n) into Step 3, and repeating Step 3 to Step 6 in turn until the end of acid fluid injection.
    Type: Application
    Filed: June 11, 2020
    Publication date: September 24, 2020
    Applicants: SOUTHWEST PETROLEUM UNIVERSITY, PETROCHINA COMPANY LIMITED
    Inventors: Pingli Liu, Xiang Chen, Heng Xue, Honglan Zou, Liqiang Zhao, Nianyin Li, Daocheng Wang, Zhifeng Luo, Juan Du, Chong Liang, Mingyue Cui, Fei Liu, Changlin Zhou, Rong Zeng