Patents by Inventor Maribeth B. Amundsen

Maribeth B. Amundsen 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).

  • Oxygen-free aromatic alkylation process
    Patent number: 5300722
    Abstract: In an aromatic alkylation process, an aromatic hydrocarbon is contacted with an alkylating agent in a reactor vessel in the absence of oxygen in the presence of a silica-containing molecular sieve catalyst under liquid phase alkylation conditions to recover an alkyl-substituted aromatic product from said reactor vessel.
    Type: Grant
    Filed: December 27, 1990
    Date of Patent: April 5, 1994
    Assignee: Amoco Corporation
    Inventors: Edward F. Steigelmann, Maribeth B. Amundsen, Ken Tadano, Allen I. Feinstein