Patents by Inventor James E. Halligan

James E. Halligan 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).

  • Processing of lignite for petrochemicals
    Patent number: 4140583
    Abstract: Process and apparatus for producing ethylene from lignite and subbituminous coal by chemical condition and temperature control using cellulosic material within the treated mass or added thereto whereby ethylene gas is evolved from such carbonacous feed and recovered with other products.
    Type: Grant
    Filed: November 5, 1976
    Date of Patent: February 20, 1979
    Assignee: Pioneer Corporation
    Inventors: James E. Halligan, William J. Huffman