Patents by Inventor Thomas H. Flower

Thomas H. Flower 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 2-pentanone from formic acid by extractive distillation
    Patent number: 4859285
    Abstract: 2-Pentanone cannot be completely removed from 2-pentanone and formic acid mixtures by distillation because of the presence of the maximum azeotrope. 2-Pentanone can be readily removed from 2-pentanone-formic acid mixtures by extractive distillation in which the extractive agent is a ketone, either alone or mixed with certain high boiling organic compounds. Examples of effective agents are cyclohexanone; diisobutyl ketone and octanoic acid; isophorone, hexanoic acid and butyl ether.
    Type: Grant
    Filed: May 2, 1988
    Date of Patent: August 22, 1989
    Assignee: Lloyd Berg
    Inventors: Lloyd Berg, Rudolph J. Szabados, Thomas H. Flower