Patents by Inventor Georges Brenguer

Georges Brenguer 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).

  • Method for making a hydrazine by hydrolysing an azine
    Patent number: 6759023
    Abstract: The invention relates to a process for manufacturing hydrazine by hydrolyzing an azine, in which the heat required for the reaction and the separation by distillation of the components is partly provided by injecting vaporized water.
    Type: Grant
    Filed: October 31, 2001
    Date of Patent: July 6, 2004
    Assignee: Atofina
    Inventors: Georges Brenguer, Jean-Philippe Ricard, Michel Vidal
  • Process for the preparation of hydrazine
    Patent number: 6551568
    Abstract: Process for the preparation of azine and of hydrazine by bringing ammonia, hydrogen peroxide and a reactant carrying a carbonyl group into contact with a working solution, comprising: the treatment of an aqueous stream resulting from the circuit for the regeneration of the said working solution with an amount of acid such that the pH of the said stream is brought to a value of less than 6.4, then the recycling of the said stream in the reactor for the synthesis of the azine.
    Type: Grant
    Filed: April 5, 2001
    Date of Patent: April 22, 2003
    Assignee: Atofina
    Inventors: Georges Brenguer, Rémi Jullin, Jean-Philippe Ricard
  • Process for the preparation of hydrazine
    Publication number: 20020016507
    Abstract: Process for the preparation of azine and of hydrazine by bringing ammonia, hydrogen peroxide and a reactant carrying a carbonyl group into contact with a working solution, comprising:
    Type: Application
    Filed: April 5, 2001
    Publication date: February 7, 2002
    Inventors: Georges Brenguer, Remi Jullin, Jean-Philippe Ricard