Patents by Inventor Ronggang Liu

Ronggang 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: 20230390299
    Abstract: This invention relates to compounds, pharmaceutical compositions and their use for treating fibrotic disorders, proliferative disorders, cardiovascular diseases, acute and chronic inflammatory disorders, primary and metastatic cancer, pulmonary conditions, ocular diseases, or neurological and neuropsychiatric conditions. One particular aspect of the inventions relates to inhibitors of the family of lysyl oxidase enzymes and their use as therapeutics for fibrotic disorders. This abstract is intended as a scanning tool for purposes of searching in the particular art and is not intended to be limiting of the present invention.
    Type: Application
    Filed: October 28, 2022
    Publication date: December 7, 2023
    Inventors: Michael Clare, Juan Du, Xiang Li, Ronggang Liu
  • Publication number: 20230310445
    Abstract: This invention relates to compounds, pharmaceutical compositions and their use for treating fibrotic disorders, proliferative disorders, cardiovascular diseases, acute and chronic inflammatory disorders, primary and metastatic cancer, pulmonary conditions, ocular diseases, or neurological and neuropsychiatric conditions. One particular aspect of the inventions relates to inhibitors of the family of lysyl oxidase enzymes and their use as therapeutics for fibrotic disorders.
    Type: Application
    Filed: April 20, 2021
    Publication date: October 5, 2023
    Inventors: Michael Clare, Maria Kleppe, Xiang Li, Juan Du, Ronggang Liu
  • Publication number: 20230227414
    Abstract: The invention described herein relates to certain pyrimidinetrione N-substituted glycine derivatives of formula (I) which are antagonists of HIF prolyl hydroxylases and are useful for treating diseases benefiting from the inhibition of this enzyme, anemia being one example.
    Type: Application
    Filed: March 21, 2023
    Publication date: July 20, 2023
    Inventors: Kevin J. DUFFY, Duke M. FITCH, Jian JIN, Ronggang LIU, Antony N. SHAW, Kenneth WIGGALL
  • Patent number: 11643397
    Abstract: The invention described herein relates to certain pyrimidinetrione N-substituted glycine derivatives of formula (I) which are antagonists of HIF prolyl hydroxylases and are useful for treating diseases benefiting from the inhibition of this enzyme, anemia being one example.
    Type: Grant
    Filed: July 23, 2021
    Date of Patent: May 9, 2023
    Assignee: GlaxoSmithKline LLC
    Inventors: Kevin J. Duffy, Duke M. Fitch, Jian Jin, Ronggang Liu, Antony N. Shaw, Kenneth Wiggall
  • Patent number: 11624458
    Abstract: The field of metal hoses, and specifically, an explosion-proof flexible metal hose for natural gas pipelines is concerned. The problems that the existing metal hose has low intensity and high flow velocity are solved. The explosion-proof flexible metal hose for natural gas pipelines includes a metal hose. A side of the metal hose is provided with a fixing assembly composed of a flange and a loose flange, and an other side of the metal hose is provided with a welding neck flange configured for fixing. The metal hose is covered with a steel band with a multilayer structure. The metal hose and two ends of the steel band are fixed through cooperation between metal short sections and pressing clamp rings. A reinforcement coil is wound around the metal hose.
    Type: Grant
    Filed: September 3, 2021
    Date of Patent: April 11, 2023
    Assignee: LANZHOU TIANYI PETROCHEMICAL EQUIPMENT MAINTENANCE TECHNOLOGY CO. LTD
    Inventors: Jingyi Guo, Kai Liu, Linlin He, Ronggang Liu, Hufeng Xia, Lei Zhang
  • Publication number: 20220136623
    Abstract: The field of metal hoses, and specifically, an explosion-proof flexible metal hose for natural gas pipelines is concerned. The problems that the existing metal hose has low intensity and high flow velocity are solved. The explosion-proof flexible metal hose for natural gas pipelines includes a metal hose. A side of the metal hose is provided with a fixing assembly composed of a flange and a loose flange, and an other side of the metal hose is provided with a welding neck flange configured for fixing. The metal hose is coverd with a steel band with a multilayer structure. The metal hose and two ends of the steel band are fixed through cooperation between metal short sections and pressing clamp rings. A reinforcement coil is wound around the metal hose. According to the device, the existing metal hose structure is optimized. The reinforcement coil is designed in the metal hose, so that the intensity of the metal hose is improved, and a dual anti-explosion effect of the metal hose is achieved.
    Type: Application
    Filed: September 3, 2021
    Publication date: May 5, 2022
    Inventors: Jingyi Guo, Kai Liu, Linlin He, Ronggang Liu, Hufeng Xia, Lei Zhang
  • Publication number: 20220064150
    Abstract: Amine substituted reverse pyrimidine compounds and forms thereof that inhibit the function and reduce the level of B-cell specific Moloney murine leukemia virus integration site 1 (Bmi-1) protein and methods for their use to inhibit Bmi-1 function and reduce the level of Bmi-1 to treat a cancer mediated by Bmi-1 are described herein.
    Type: Application
    Filed: November 10, 2021
    Publication date: March 3, 2022
    Inventors: Chang-Sun Lee, Ramil Baiazitov, Liangxian Cao, Thomas W. Davis, Wu Du, Ronggang Liu, Young-Choon Moon, Steven D. Paget, Hongyu Ren, Nadiya Sydorenko, Richard Gerald Wilde
  • Patent number: 11180483
    Abstract: Amine substituted reverse pyrimidine compounds and forms thereof that inhibit the function and reduce the level of B-cell specific Moloney murine leukemia virus integration site 1 (Bmi-1) protein and methods for their use to inhibit Bmi-1 function and reduce the level of Bmi-1 to treat a cancer mediated by Bmi-1 are described herein.
    Type: Grant
    Filed: September 26, 2019
    Date of Patent: November 23, 2021
    Assignee: PTC Therapeutics, Inc.
    Inventors: Chang-Sun Lee, Ramil Baiazitov, Liangxian Cao, Thomas W. Davis, Wu Du, Ronggang Liu, Young-Choon Moon, Steven D. Paget, Hongyu Ren, Nadiya Sydorenko, Richard Gerald Wilde
  • Publication number: 20210347740
    Abstract: The invention described herein relates to certain pyrimidinetrione N-substituted glycine derivatives of formula (I) which are antagonists of HIF prolyl hydroxylases and are useful for treating diseases benefiting from the inhibition of this enzyme, anemia being one example.
    Type: Application
    Filed: July 23, 2021
    Publication date: November 11, 2021
    Inventors: Kevin J. Duffy, Duke M. FITCH, Jian JIN, Ronggang LIU, Antony N. SHAW, Kenneth WIGGALL
  • Publication number: 20200157055
    Abstract: The invention described herein relates to certain pyrimidinetrione N-substituted glycine derivatives of formula (I) which are antagonists of HIF prolyl hydroxylases and are useful for treating diseases benefiting from the inhibition of this enzyme, anemia being one example.
    Type: Application
    Filed: June 27, 2019
    Publication date: May 21, 2020
    Inventors: Kevin J. DUFFY, Duke M. FITCH, Jian JIN, Ronggang LIU, Antony N. SHAW, Kenneth WIGGALL
  • Patent number: 10584115
    Abstract: Amine substituted pyridine and pyrazine compounds and forms thereof that inhibit the function and reduce the level of B-cell specific Moloney murine leukemia virus integration site 1 (Bmi-1) protein and methods for their use to inhibit Bmi-1 function and reduce the level of Bmi-1 to treat a cancer mediated by Bmi-1 are described herein.
    Type: Grant
    Filed: November 21, 2013
    Date of Patent: March 10, 2020
    Assignee: PTC THERAPEUTICS, INC.
    Inventors: Ramil Baiazitov, Soongyu Choi, Wu Du, Seongwoo Hwang, Chang-Sun Lee, Ronggang Liu, Young-Choon Moon, Steven D. Paget, Hongyu Ren, Nadiya Sydorenko, Richard Gerald Wilde
  • Publication number: 20200024260
    Abstract: Amine substituted reverse pyrimidine compounds and forms thereof that inhibit the function and reduce the level of B-cell specific Moloney murine leukemia virus integration site 1 (Bmi-1) protein and methods for their use to inhibit Bmi-1 function and reduce the level of Bmi-1 to treat a cancer mediated by Bmi-1 are described herein.
    Type: Application
    Filed: September 26, 2019
    Publication date: January 23, 2020
    Inventors: Chang-Sun Lee, Ramil Baiazitov, Liangxian Cao, Thomas W. Davis, Wu Du, Ronggang Liu, Young-Choon Moon, Steven D. Paget, Hongyu Ren, Nadiya Sydorenko, Richard Gerald Wilde
  • Patent number: 10428050
    Abstract: Amine substituted reverse pyrimidine compounds and forms thereof that inhibit the function and reduce the level of B-cell specific Moloney murine leukemia virus integration site 1 (Bmi-1) protein and methods for their use to inhibit Bmi-1 function and reduce the level of Bmi-1 to treat a cancer mediated by Bmi-1 are described herein.
    Type: Grant
    Filed: November 21, 2013
    Date of Patent: October 1, 2019
    Assignee: PTC THERAPEUTICS, INC.
    Inventors: Chang-Sun Lee, Ramil Baiazitov, Liangxian Cao, Thomas W Davis, Wu Du, Ronggang Liu, Young-choon Moon, Steven D. Paget, Hongyu Ren, Nadiya Sydorenko, Richard Gerald Wilde
  • Publication number: 20160297772
    Abstract: The invention described herein relates to certain pyrimidinetrione N-substituted glycine derivatives of formula (I) which are antagonists of HIF prolyl hydroxylases and are useful for treating diseases benefiting from the inhibition of this enzyme, anemia being one example.
    Type: Application
    Filed: June 20, 2016
    Publication date: October 13, 2016
    Inventors: Duke M. FITCH, Antony N. SHAW, Kenneth WIGGALL, Kevin DUFFY, Jian JIN, Ronggang LIU
  • Publication number: 20160280685
    Abstract: Amine substituted pyridine and pyrazine compounds and forms thereof that inhibit the function and reduce the level of B-cell specific Moloney murine leukemia virus integration site 1 (Bmi-1) protein and methods for their use to inhibit Bmi-1 function and reduce the level of Bmi-1 to treat a cancer mediated by Bmi-1 are described herein.
    Type: Application
    Filed: November 21, 2013
    Publication date: September 29, 2016
    Inventors: Ramil Baiazitov, Soongyu Choi, Wu Du, Seongwoo Hwang, Chang-Sun Lee, Ronggang Liu, Young-Choon Moon, Steven D. Paget, Hongyu Ren, Nadiya Sydorenko, Richard Gerald Wilde
  • Publication number: 20150315182
    Abstract: Amine substituted reverse pyrimidine compounds and forms thereof that inhibit the function and reduce the level of B-cell specific Moloney murine leukemia virus integration site 1 (Bmi-1) protein and methods for their use to inhibit Bmi-1 function and reduce the level of Bmi-1 to treat a cancer mediated by Bmi-1 are described herein.
    Type: Application
    Filed: November 21, 2013
    Publication date: November 5, 2015
    Inventors: Chang-Sun Lee, Ramil Baiazitov, Liangxian Cao, Thomas W Davis, Wu Du, Ronggang Liu, Young-choon Moon, Steven D. Paget, Hongyu Ren, Nadiya Sydorenko, Richard Gerald Wilde
  • Patent number: 8735414
    Abstract: The present invention is directed to compounds and forms and pharmaceutical compositions thereof useful for treating a viral infection, or for affecting viral activity by modulating viral replication.
    Type: Grant
    Filed: April 5, 2010
    Date of Patent: May 27, 2014
    Assignee: PTC Therapeutics, Inc.
    Inventors: Malcolm MacCoss, F. George Njoroge, Amin Nomeir, Guangming Chen, Song Xiao Huang, Ramesh Kakarla, Gary Mitchell Karp, William Joseph Lennox, Chunshi Li, Ronggang Liu, Yalei Liu, Christie Morrill, Steven D. Paget, Sean W Smith, James Takasugi, Anthony A. Turpoff, Hongyu Ren, Nanjing Zhang, Xiaoyan Zhang, Jin Zhu
  • Patent number: 8431590
    Abstract: The present invention relates to a compound of the following formula: where R1-R6, R10, Y, n, m, p, and q are as defined herein. Compounds and compositions of the present invention are useful for the treatment of diseases associated with the overexpression of CCR2.
    Type: Grant
    Filed: June 20, 2008
    Date of Patent: April 30, 2013
    Assignee: Glaxo Group Limited
    Inventors: Brian W. Budzik, Hilary Schenck Eidam, Ryan Michael Fox, Krista B. Goodman, Dimitar B. Gotchev, Pamela A. Haile, Terry Vincent Hughes, Ronggang Liu, Nathan A. Miller, Tamara Ann Miskowski, Clark A. Sehon, Andrew Q. Viet, Gren Z. Wang, Jing Zhang
  • Patent number: 8324208
    Abstract: The invention described herein relates to certain pyrimidinetrione N-substituted glycine derivatives of formula (I) which are antagonists of HIF prolyl hydroxylases and are useful for treating diseases benefiting from the inhibition of this enzyme, anemia being one example.
    Type: Grant
    Filed: June 22, 2007
    Date of Patent: December 4, 2012
    Assignee: GlaxoSmithKline LLC
    Inventors: Kevin J. Duffy, Duke M. Fitch, Jian Jin, Ronggang Liu, Antony N. Shaw, Kenneth Wiggall
  • Publication number: 20120208827
    Abstract: This invention relates to the use of benzimidazole derivatives for the modulation, notably the inhibition of the activity or function of fatty acid synthase (FAS). Suitably, the present invention relates to the use of benzimidazoles in the treatment of cancer.
    Type: Application
    Filed: October 27, 2010
    Publication date: August 16, 2012
    Inventors: Steven Dock, Jason Hallman, Christopher Laudeman, Ronggang Liu, Aaron Miller, Michael Lee Moore, David Musso, Cynthia Parrish