Patents by Inventor Albert M. V. Jacques

Albert M. V. Jacques 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 2,5-dichloro-3-nitrobenzoic acid
    Patent number: 4454345
    Abstract: The invention relates to a process of preparing 2,5-dichloro-3-nitrobenzoic acid by reacting 1,4-dimethyl-2,5-dichloro-3-nitrobenzene with aqueous nitric acid.
    Type: Grant
    Filed: September 27, 1979
    Date of Patent: June 12, 1984
    Assignee: Union Carbide Corporation
    Inventor: Albert M. V. Jacques
  • Terephthalic acid derivatives and process for preparing them
    Patent number: 4339601
    Abstract: The novel compounds of the formula: ##STR1## wherein R.sup.1 and R.sup.2 are each either hydrogen or an alkyl group containing from 1 to 4 carbon atoms, and maybe the same or different, are useful intermediates in a novel process for the preparation of herbicidally active compounds such as 2,5-dichloro-3-nitro-benzoic acid, 2,5-dichloro-3-amino-benzoic acid and their functional derivatives.
    Type: Grant
    Filed: September 30, 1980
    Date of Patent: July 13, 1982
    Assignee: Union Carbide Corporation
    Inventor: Albert M. V. Jacques
  • Terephthalic acid derivatives
    Patent number: 4252979
    Abstract: The novel compounds of the formula: ##STR1## wherein R.sup.1 and R.sup.2 are each either hydrogen or an alkyl group containing from 1 to 4 carbon atoms, and maybe the same or different, are useful intermediates in a novel process for the preparation of herbicidally active compounds such as 2,5-dichloro-3-nitro-benzoic acid, 2,5-dichloro-3-amino-benzoic acid and their functional derivatives.
    Type: Grant
    Filed: January 26, 1979
    Date of Patent: February 24, 1981
    Assignee: Amchem Products Inc.
    Inventor: Albert M. V. Jacques