Patents by Inventor Andrew J. Allchurch

Andrew J. Allchurch 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).

  • Production of ethylene oxide
    Patent number: 5384420
    Abstract: A gas stream from a reaction in which ethylene oxide is produced by reacting ethylene with oxygen which gas stream comprises oxides of nitrogen and steam the gas stream is cooled to condense water, condensed water is removed, and ethylene oxide is then recovered from the gas stream. A substantial amount of the oxides of nitrogen is removed from the gas stream during the condensation.
    Type: Grant
    Filed: February 19, 1993
    Date of Patent: January 24, 1995
    Assignee: Imperial Chemical Industries plc
    Inventors: James R. Jennings, Percy Hayden, Andrew J. Allchurch