Patents by Inventor Vicky K. Pinto

Vicky K. Pinto 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).

  • Method for refining acetic anhydride by distillation
    Patent number: 5264087
    Abstract: Disclosed is a continuous method for refining acetic anhydride produced by the reaction of ketene and acetic acid by means of a vacuum distillation system to provide a refined material comprised of at least 99.5 weight percent acetic anhydride, not more than 0.5 weight percent acetic acid and not more than about 90 parts per million (ppm) diketene.
    Type: Grant
    Filed: October 13, 1992
    Date of Patent: November 23, 1993
    Assignee: Eastman Kodak Company
    Inventors: H. Ford Lowery, Steven L. Cook, Vicky K. Pinto