Patents by Inventor Susan Dio

Susan Dio 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).

  • HCN from crude aceto
    Patent number: 4981670
    Abstract: A process for producing hydrogen cyanide from gaseous acetonitrile comprising reacting the acetonitrile in the presence of an oxygen containing gas while in contact with an oxidation catalyst at an elevated temperature wherein the improvement comprises producing said gaseous acetonitrile from a mixture of crude acetonitrile and polymerization inhibiting agent.
    Type: Grant
    Filed: December 15, 1989
    Date of Patent: January 1, 1991
    Assignee: BP America Inc.
    Inventors: Susan Dio, Paul Wachtendorf