Patents by Inventor Joyce D. Lamb

Joyce D. Lamb 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).

  • Preparation of a dimethyltetralin by cyclizing an orthotolylpentene phenylhexene using an ultra-stable crystalline aluminosilicate molecular sieve y-zeolite
    Patent number: 5401892
    Abstract: A method for preparing one or more specific dimethyltetralins from either 5-(o-, m-, or p-tolyl)-pent-1- or -2-ene or 5-phenyl-hex-1- or -2-ene, and optionally for preparing one or more specific dimethylnaphthalenes from the aforesaid dimethyltetralins is disclosed wherein the orthotolylpentene or phenylhexane is cyclized to the dimethyltetralin using an ultra-stable crystalline aluminosilicate molecular sieve Y-zeolite.
    Type: Grant
    Filed: February 26, 1993
    Date of Patent: March 28, 1995
    Assignee: Amoco Corporation
    Inventors: David L. Sikkenga, Ian C. Zaenger, Joyce D. Lamb, Gregory S. Williams
  • Preparation of a dimethyltetralin
    Patent number: 5073670
    Abstract: A method for preparing one or more specific dimethyltetralins from either 5-(o-, m-, or p-tolyl)-pent-1-or -2-ene or 5-phenyl-hex-1- or -2-ene, and optionally for preparing one or more specific dimethylnaphthalenes from the aforesaid dimethyltetralins is disclosed.
    Type: Grant
    Filed: July 20, 1990
    Date of Patent: December 17, 1991
    Assignee: Amoco Corporation
    Inventors: David L. Sikkenga, Joyce D. Lamb, Ian C. Zaenger, Gregory S. Williams
  • Preparation of a dimethyltetralin
    Patent number: 4950825
    Abstract: A method for preparing one or more specific dimethyltetralins from either 5-(o-, m-, or p-tolyl)-pent-1- or -2-ene or 5-phenyl-hex-1- or -2-ene, and optionally for preparing one or more specific dimethylnaphthalenes from the aforesaid dimethyltetralins is disclosed.
    Type: Grant
    Filed: February 27, 1989
    Date of Patent: August 21, 1990
    Assignee: Amoco Corporation
    Inventors: David L. Sikkenga, Joyce D. Lamb, Ian C. Zaenger, Gregory S. Williams