Patents by Inventor Evert Klein

Evert Klein 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).

  • Vaporization In Oxidation To Phthalic Anhydride
    Publication number: 20110230667
    Abstract: In the production of phthalic anhydride by the oxidation of ortho-xylene with air, the ortho-xylene loading is increased without increasing the likelihood of explosion by insulating the system to avoid cold spots to keep the ortho-xylene at a temperature above its dew point; in addition the system may be electrically interconnected and grounded to reduce the risk of spark initiated explosions or deflagrations.
    Type: Application
    Filed: September 9, 2008
    Publication date: September 22, 2011
    Inventors: Nicolaas Anthony De Munck, Aad Oskam, Evert Klein