Patents by Inventor Raymond E. Holler

Raymond E. Holler 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).

  • Extractive distillation
    Patent number: 4371427
    Abstract: A level-controlled water tank in an extractive distillation system is used to maintain the water concentration in the solvent mixture constant.
    Type: Grant
    Filed: June 16, 1981
    Date of Patent: February 1, 1983
    Assignee: Phillips Petroleum Company
    Inventors: Raymond E. Holler, Loyal E. Henson