Patents by Inventor Pengtao ZHANG

Pengtao ZHANG 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).

  • INTERMEDIATE COMPOUNDS AND METHODS
    Publication number: 20230183178
    Abstract: The present invention relates to compounds of (II) and an acceptable salt or hydrate thereof method of making same.
    Type: Application
    Filed: February 9, 2023
    Publication date: June 15, 2023
    Inventors: Phouvieng BEYER, Jason A. BRAZZILLO, Magnus ERIKSSON, Jon Charles LORENZ, Laurence J. NUMMY, Sonia RODRIGUEZ, Jolaine SAVOIE, Kanwar Pal Singh SIDHU, Joshua D. SIEBER, Thomas Gabriel TAMPONE, Zhulin TAN, Jun WANG, Li ZHANG, Weitong DONG, Pengtao ZHANG
  • Microcatheter
    Patent number: 11654259
    Abstract: The present invention discloses a microcatheter, with tubular structure, comprising a catheter body, a sharp portion disposed at a distal end of the catheter body, the catheter body comprises: a inner layer with a hollow lumen; a tubular intermediate layer wrapped outside the inner layer, comprising a spring layer and a braid above the spring layer, the braid extending longitudinally along a part of the spring layer; and a tubular outer layer, wrapped outside the intermediate layer; the part of the spring layer which is not wrapped by the braid is bent at a certain angle along a longitudinal axis of the catheter body.
    Type: Grant
    Filed: May 3, 2018
    Date of Patent: May 23, 2023
    Assignee: ORBUSNEICH MEDICAL (SHENZHEN) CO., LTD.
    Inventors: Lixia Guo, Pengtao Zhang
  • Intermediate compounds and methods
    Patent number: 11603354
    Abstract: The present invention relates to compounds of (II) and an acceptable salt or hydrate thereof method of making same.
    Type: Grant
    Filed: July 14, 2021
    Date of Patent: March 14, 2023
    Inventors: Phouvieng Beyer, Jason A. Brazzillo, Weitong Dong, Magnus Eriksson, Jon Charles Lorenz, Laurence J. Nummy, Sonia Rodriguez, Jolaine Savoie, Kanwar Pal Singh Sidhu, Joshua D. Sieber, Thomas Gabriel Tampone, Zhulin Tan, Jun Wang, Li Zhang, Pengtao Zhang
  • INTERMEDIATE COMPOUNDS AND METHODS
    Publication number: 20210340101
    Abstract: The present invention relates to compounds of (II) and an acceptable salt or hydrate thereof method of making same.
    Type: Application
    Filed: July 14, 2021
    Publication date: November 4, 2021
    Inventors: Phouvieng BEYER, Jason A. BRAZZILLO, Weitong DONG, Magnus ERIKSSON, Jon Charles LORENZ, Laurence J. NUMMY, Sonia RODRIGUEZ, Jolaine SAVOIE, Kanwar Pal Singh SIDHU, Joshua D. SIEBER, Thomas Gabriel TAMPONE, Zhulin TAN, Jun WANG, Li ZHANG, Pengtao ZHANG
  • Microcatheter
    Publication number: 20210213243
    Abstract: The present invention discloses a microcatheter, with tubular structure, comprising a catheter body, a sharp portion disposed at a distal end of the catheter body, the catheter body comprises: a inner layer with a hollow lumen; a tubular intermediate layer wrapped outside the inner layer, comprising a spring layer and a braid above the spring layer, the braid extending longitudinally along a part of the spring layer; and a tubular outer layer, wrapped outside the intermediate layer; the part of the spring layer which is not wrapped by the braid is bent at a certain angle along a longitudinal axis of the catheter body.
    Type: Application
    Filed: May 3, 2018
    Publication date: July 15, 2021
    Applicant: ORBUSNEICH MEDICAL (SHENZHEN) CO., LTD.
    Inventors: Lixia Guo, Pengtao Zhang
  • Process for the preparation of (r)-8-(3-aminopiperidin-1-yl)-7-(but-2-yn-1-yl)-3-methyl-1-((4-methylquinazolin-2-yl)methyl)-3,7-dihydro-1h-purine-2,6-dione
    Patent number: 10253026
    Abstract: This invention relates to a method for preparation of a xanthine-based compound of formula (I): as well as to intermediates useful in such preparation.
    Type: Grant
    Filed: June 24, 2016
    Date of Patent: April 9, 2019
    Assignee: Boenringer Ingelheim International GmbH
    Inventors: Weitong Dong, Yao Huang, Shengmin Su, Yongfen Sun, Pengtao Zhang
  • PROCESS FOR THE PREPARATION OF A XANTHINE-BASED COMPOUND
    Publication number: 20180179207
    Abstract: This invention relates to a method for preparation of a xanthine-based compound, as well as to intermediates useful in such preparation.
    Type: Application
    Filed: June 24, 2016
    Publication date: June 28, 2018
    Inventors: Weitong DONG, Yao HUANG, Shengmin SU, Yongfen SUN, Pengtao ZHANG