Patents by Inventor Michel DeRubercy

Michel DeRubercy 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 the continuous conversion of one hydroxylamine salt to another hydroxylamine salt
    Patent number: 5411725
    Abstract: The present invention relates to a process for the continuous conversion of one hydroxylamine salt to another hydroxylamine salt, said process involving a countercurrent liquid-liquid extraction followed by a countercurrent liquid-liquid re-extraction. Characteristically, the extractant is used in the extraction step in the salified form and in the acid form.
    Type: Grant
    Filed: October 18, 1993
    Date of Patent: May 2, 1995
    Assignee: Societe Generale Pour les Techniques Nouvelles, SGN
    Inventors: Dominique Pareau, Andre Chesne, Gerard Durand, Michel DeRubercy