Patents by Inventor Gilbert Andreis

Gilbert Andreis 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 preparing ethylene oxide
    Publication number: 20050103617
    Abstract: The present invention relates to a process for treating a mixture of impure ethylene oxide and of water in a ratio by weight of ethylene oxide to water of 0.1/1 to 4/1, comprising aldehyde impurities, formaldehyde and acetaldehyde, in order to obtain a purified ethylene oxide essentially free of water and of the aldehyde impurities.
    Type: Application
    Filed: December 18, 2002
    Publication date: May 19, 2005
    Inventors: Gilbert Andreis, Georges Josten