Patents by Inventor Maurice Goharel

Maurice Goharel 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 of preparing phthalic anhydride
    Patent number: 4119645
    Abstract: A method for preparing phthalic anhydride by oxidation of o-xylene with air in which the reaction is self-sufficient in terms of energy and involves only low investment costs while providing a pure product in high yield in which the oxidation reaction is carried out in short tubes for minimum pressure drop over the reactor.
    Type: Grant
    Filed: July 20, 1977
    Date of Patent: October 10, 1978
    Assignee: Rhone-Progil
    Inventors: Michel Auroy, Maurice Goharel, Jacques Zoulalian