Patents by Inventor David Drouard

David Drouard 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).

  • Processes for the preparation of amides
    Patent number: 8501993
    Abstract: The invention relates to a process for the preparation of intermediates useful in the preparation of fungicidally active phenylpropargylether derivatives. The process involves coupling of carboxylic acid with an amine in (a) the absence of a catalyst; (b) the presence of a boronic acid catalyst.
    Type: Grant
    Filed: May 11, 2009
    Date of Patent: August 6, 2013
    Assignee: Syngenta Limited
    Inventors: Martin Charles Bowden, David Anthony Jackson, Alexandre Christian Saint-Dizier, David Drouard
  • PROCESSES FOR THE PREPARATION OF AMIDES
    Publication number: 20110071315
    Abstract: The invention relates to a process for the preparation of intermediates useful in the preparation of fungicidally active phenylpropargylether derivatives. The process involves coupling of carboxylic acid with an amine in (a) the absence of a catalyst; (b) the presence of a boronic acid catalyst.
    Type: Application
    Filed: May 11, 2009
    Publication date: March 24, 2011
    Applicant: SYNGENTA CROP PROTECTION, INC.
    Inventors: Martin Charles Bowden, David Anthony Jackson, Alexandre Christian Saint-Dizier, David Drouard