Patents by Inventor Armand Mettling

Armand Mettling 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 for the production of a benzofuran or benzothiophene type derivative nitrated in the 5 position, and use thereof
    Publication number: 20050113596
    Abstract: The invention concerns novel nitroaromatic compounds of general formula (I?) wherein: R, R?1, R2, Z and n are as defined in claim 38. The invention also concerns a method for preparing nitroaromatic compounds nitrated in position 4. The invention further concerns the use of said compounds for preparing heterocyclic benzofuran or benzothiophene derivatives nitrated in position 5.
    Type: Application
    Filed: October 25, 2004
    Publication date: May 26, 2005
    Inventors: Thierry Schlama, Armand Mettling, Philippe Karrer
  • Intermediates for making a bezofuran or benzothiophene derivative nitrated in position 5 and uses thereof
    Patent number: 6855842
    Abstract: The invention concerns novel nitroaromatic compounds of general formula (I?) wherein: R, R?1, R2, Z and n are as defined in claim 1. The invention also concerns a method for preparing nitroaromatic compounds nitrated in position 4. The invention further concerns the use of said compounds for preparing heterocyclic benzofuran or benzothiophene derivatives nitrated in position 5. The invention concerns particularly the preparation of 2-alkyl-5-nitrobezofuran.
    Type: Grant
    Filed: October 23, 2000
    Date of Patent: February 15, 2005
    Assignee: Rhodia Chimie
    Inventors: Thierry Schlama, Armand Mettling, Philippe Karrer