Patents by Inventor Robert Wayne Dugger

Robert Wayne Dugger 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).

  • Intermediates and methods for synthesizing calicheamicin derivatives
    Patent number: 10508081
    Abstract: The present invention relates to intermediates of Formula I and to methods of synthesizing and purifying calicheamicin derivatives.
    Type: Grant
    Filed: January 12, 2018
    Date of Patent: December 17, 2019
    Assignee: Pfizer Inc.
    Inventors: Robert Wayne Dugger, Leo Joseph Letendre, Vimalkumar Babubhai Patel, Amarnauth Shastrie Prashad, Chunchun Zhang
  • INTERMEDIATES AND METHODS FOR SYNTHESIZING CALICHEAMICIN DERIVATIVES
    Publication number: 20180134656
    Abstract: The present invention relates to intermediates of Formula I and to methods of synthesizing and purifying calicheamicin derivatives.
    Type: Application
    Filed: January 12, 2018
    Publication date: May 17, 2018
    Applicant: PFIZER INC.
    Inventors: Robert Wayne Dugger, Leo Joseph Letendre, Vimalkumar Babubhai Patel, Amarnauth Shastrie Prashad, Chunchun Zhang
  • Intermediates and methods for synthesizing calicheamicin derivatives
    Patent number: 9902691
    Abstract: The present invention relates to intermediates of Formula I and to methods of synthesizing and purifying calicheamicin derivatives.
    Type: Grant
    Filed: October 28, 2014
    Date of Patent: February 27, 2018
    Assignee: Pfizer Inc.
    Inventors: Robert Wayne Dugger, Leo Joseph Letendre, Vimalkumar Babubhai Patel, Amarnauth Shastrie Prashad, Chunchun Zhang
  • INTERMEDIATES AND METHODS FOR SYNTHESIZING CALICHEAMICIN DERIVATIVES
    Publication number: 20160251389
    Abstract: The present invention relates to intermediates of Formula I and to methods of synthesizing and purifying calicheamicin derivatives.
    Type: Application
    Filed: October 28, 2014
    Publication date: September 1, 2016
    Applicant: Pfizer Inc.
    Inventors: Robert Wayne Dugger, Leo Joseph Letendre, Vimalkumar Babubhai Patel, Amarnauth Shastrie Prashad, Chunchun Zhang