Patents by Inventor Diane A. Montevideo

Diane A. Montevideo 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).

  • Separation of monoalkyl maleate from dialkyl maleate
    Patent number: 4740272
    Abstract: A method of producing substantially pure dialkyl maleate by separating monoalkyl maleate from dialkyl maleate in a short residence time distillation zone while minimizing reversion of the monoalkyl maleate to alkanol and maleic anhydride and without having to neutralize the monoalkyl maleate.
    Type: Grant
    Filed: March 31, 1987
    Date of Patent: April 26, 1988
    Assignee: Davy McKee (London) Limited
    Inventors: Ernesto Vera-Castaneda, Diane A. Montevideo, David J. Miller, John E. Logsdon, David R. Bryant