Patents by Inventor David P. Pleynet

David P. Pleynet 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).

  • CAMPTOTHECIN DERIVATIVES
    Publication number: 20220133711
    Abstract: Disclosed herein are novel cytotoxic compounds, and cytotoxic conjugates comprising these cytotoxic compounds and cell-binding agents. More specifically, this disclosure relates to novel camptothecin derivatives thereof, intermediates thereof, conjugates thereof, and pharmaceutically acceptable salts thereof, which are useful as medicaments, in particular as anti-proliferative agents (anticancer agents).
    Type: Application
    Filed: October 15, 2021
    Publication date: May 5, 2022
    Inventors: Ravi V.J. Chari, Wayne C. Widdison, Wei Li, David P. Pleynet
  • Camptothecin derivatives
    Patent number: 11229639
    Abstract: Disclosed herein are novel cytotoxic compounds, and cytotoxic conjugates comprising these cytotoxic compounds and cell-binding agents. More specifically, this disclosure relates to novel camptothecin derivatives thereof, intermediates thereof, conjugates thereof, and pharmaceutically acceptable salts thereof, which are useful as medicaments, in particular as anti-proliferative agents (anticancer agents).
    Type: Grant
    Filed: September 25, 2020
    Date of Patent: January 25, 2022
    Assignee: IMMUNOGEN, INC.
    Inventors: Ravi V. J. Chari, Wayne C. Widdison, Wei Li, David P. Pleynet
  • CAMPTOTHECIN DERIVATIVES
    Publication number: 20210077482
    Abstract: Disclosed herein are novel cytotoxic compounds, and cytotoxic conjugates comprising these cytotoxic compounds and cell-binding agents. More specifically, this disclosure relates to novel camptothecin derivatives thereof, intermediates thereof, conjugates thereof, and pharmaceutically acceptable salts thereof, which are useful as medicaments, in particular as anti-proliferative agents (anticancer agents).
    Type: Application
    Filed: September 25, 2020
    Publication date: March 18, 2021
    Inventors: Ravi V.J. Chari, Wayne C. Widdison, Wei Li, David P. Pleynet