Patents by Inventor Philippe Deroisy

Philippe Deroisy 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 obtaining aqueous hydrogen peroxide solutions
    Patent number: 5302367
    Abstract: Process for obtaining aqueous hydrogen peroxide solutions by the alkylanthraquinone process, providing a concentrated aqueous hydrogen peroxide solution with a low content of impurities, according to which a continuous addition of acidifying compounds and/or of stabilising compounds is performed, consisting in recycling towards the oxidation unit at least a part of the purge leaving the distillation unit.
    Type: Grant
    Filed: August 20, 1992
    Date of Patent: April 12, 1994
    Assignee: Interox International (Societe Anonyme)
    Inventors: Lido Signorini, Konstantin Glinos, Philippe Deroisy, Fabienne Banneux