Patents by Inventor Thomas Dahmen

Thomas Dahmen 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 preparing 1-([3R,4S)-4-cyanotetrahydropyran-3-yl]-3-[(2-fluoro-6-methoxy-4-pyridyl)amino]pyrazole-4-carboxamide
    Patent number: 12479835
    Abstract: The application relates to processes for the preparation of 1-[(3R,4S)-4-cyanotetrahydropyran-3-yl]-3-[(2-fluoro-6-methoxy-4-pyridyl) amino]pyrazole-4-carboxamide (I) which include (i) a synthesis for bromo and iodo pyridine intermediates, (ii) a synthesis of a pyrazole ester intermediate which can be obtained in enantiopure form and (iii) the combination of these intermediates into compound (I).
    Type: Grant
    Filed: December 12, 2019
    Date of Patent: November 25, 2025
    Assignee: Intervet Inc.
    Inventors: Christophe Pierre Alain Chassaing, Jingjun Yin, Lichen Song, Wensong Xiao, Edward Cleator, Thomas Dahmen, Daniel Salanta, Claudia Scheipers, Harald Schmitt
  • PROCESS OF THE PREPARATION OF HYDROXYLAMINE DERIVATIVES
    Publication number: 20250051269
    Abstract: A method of preparing a compound of Formula (I) or salt thereof, with reduced carboxylic acid by-product production.
    Type: Application
    Filed: December 23, 2023
    Publication date: February 13, 2025
    Applicant: Intervet Inc.
    Inventors: Christophe Pierre Alain Chassaing, Thomas Dahmen, Claudia Scheipers
  • Process for Preparing 1-([3R,4S)-4-Cyanotetrahydropyran-3-YL]-3-[(2-fluoro-6-Methoxy-4-Pyridyl)Amino]Pyrazole-4-Carboxamide
    Publication number: 20220017499
    Abstract: The application relates to processes for the preparation of 1-[(3R,4S)-4-cyanotetrahydropyran-3-yl]-3-[(2-fluoro-6-methoxy-4-pyridyl) amino]pyrazole-4-carboxamide (I) which include (i) a synthesis for bromo and iodo pyridine intermediates, (ii) a synthesis of a pyrazole ester intermediate which can be obtained in enantiopure form and (iii) the combination of these intermediates into compound (I).
    Type: Application
    Filed: December 12, 2019
    Publication date: January 20, 2022
    Applicant: Intervet Inc.
    Inventors: Christophe Pierre Alain Chassaing, Jingjun Yin, Licheng Song, Wensong Xiao, Edward Cleator, Thomas Dahmen, Daniel Salanta, Claudia Scheipers, Harald Schmitt