Patents by Inventor Joseph Aaron Bertrand

Joseph Aaron Bertrand 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).

  • Synthesis of metal--containing aluminophosphates with layered structure
    Patent number: 5756789
    Abstract: Disclosed is a novel process for the synthesis of a metal-containing aluminophosphate having a layered structure and novel optically active metal-containing aluminophosphates useful as enantio-selective catalysts, which comprises:a) slurring an aluminum source with water;b) adding a phosphorus source and slurring;c) allowing the mixture to stand;d) adding an organic additive;e) allowing the mixture to stand;f) adding a cationic transition metal complexg) heating to 80.degree.-250.degree. C. for 20-180 hours wherein the mole ratio of transition metal complex to organic additive is in the range of 0.1-1.0:1.0.
    Type: Grant
    Filed: June 3, 1996
    Date of Patent: May 26, 1998
    Assignee: Texaco, Inc.
    Inventors: David Alan Bruce, Mark Gilmore White, Joseph Aaron Bertrand, Pei-Shing Eugene Dai, Randall Hughes Petty