Patents by Inventor John J. Hagan

John J. Hagan 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).

  • Patent number: 4925989
    Abstract: A process for preparing methyl tertiary-butyl ether wherein tertiary-butyl alcohol, isobutylene and methanol are continuously fed into a combination reactor distillation tower having a packed sulfonic acid resin catalyst beds where a substantially pure product of MTBE methyl tertiary-butyl ether is produced.
    Type: Grant
    Filed: June 1, 1987
    Date of Patent: May 15, 1990
    Assignee: Texaco Inc.
    Inventors: John J. Hagan, Sheldon Herbstman