Patents by Inventor Beverley Ann Wilde

Beverley Ann Wilde 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).

  • Process for purification of 1-methylpyrazole-4-carboxylic acid esters
    Patent number: 8735600
    Abstract: The present invention relates to improvements in processes towards the production 3-difluoromethyl-1-methyl-1H-pyrazole-4-carboxylic acid, which is a useful intermediate in fungicide production. In particular, the invention relates to a process for treating a compound of formula III, wherein R1 is C1-C6 alkyl and R2 is CF3, CF2H or CFH2, comprising the steps of a) contacting a compound of formula III with base, and b) separating the compound of formula III and the base.
    Type: Grant
    Filed: April 20, 2010
    Date of Patent: May 27, 2014
    Assignee: Syngenta Limited
    Inventors: Graham McDougald, James Peter Muxworthy, Beverley Ann Wilde
  • PROCESS FOR PURIFICATION OF 1-METHYLPYRAZOLE-4-CARBOXYLIC ACID ESTERS
    Publication number: 20120065407
    Abstract: The present invention relates to improvements in processes towards the production 3-difluoromethyl-1-methyl-1H-pyrazole-4-carboxylic acid, which is a useful intermediate in fungicide production. In particular, the invention relates to a process for treating a compound of formula III, wherein R1 is C1-C6 alkyl and R2 is CF3, CF2H or CFH2, comprising the steps of a) contacting a compound of formula III with base, and b) separating the compound of formula III and the base.
    Type: Application
    Filed: April 20, 2010
    Publication date: March 15, 2012
    Applicant: SYNGENTA CROP PROTECTION, LLC
    Inventors: Graham McDougald, James Peter Muxworthy, Beverley Ann Wilde