Patents by Inventor Deborah T. Hung

Deborah T. Hung 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).

  • Selective production of 2,6-dimethylnaphthalene
    Patent number: 5670704
    Abstract: A method for the highly selective production of 2,6-dimethlynaphthalene by the transmethylation of naphthalene or 2-methylnaphthalene by the use of a specific acid catalyst and a highly regeospecific methylating agent.
    Type: Grant
    Filed: June 26, 1990
    Date of Patent: September 23, 1997
    Assignee: Amoco Corporation
    Inventors: Gary P. Hagen, Deborah T. Hung
  • Selective production of a p-alkyltoluene or 4,4'-alkylmethylbiphenyl
    Patent number: 5177286
    Abstract: A method for the highly selective production of a p-alkyltoluene or 4,4'-alkylmethylbiphenyl involving the use of a specific Lewis acid catalyst and a highly regeospecific methylating agent.
    Type: Grant
    Filed: June 26, 1990
    Date of Patent: January 5, 1993
    Assignee: Amoco Corporation
    Inventors: Gary P. Hagen, Deborah T. Hung
  • Selective production of a p-alkylethylbenzene or 4,4'-alkylethylbiphenyl
    Patent number: 5171917
    Abstract: A method for the highly selective production of a p-alkylethylbenzene or 4,4'-alkylethylbiphenyl involving the use of a Lewis acid or Bronsted acid alkylation catalyst and a highly regiospecific ethylating agent.
    Type: Grant
    Filed: June 26, 1990
    Date of Patent: December 15, 1992
    Assignee: Amoco Corporation
    Inventors: Gary P. Hagen, Deborah T. Hung