Patents by Inventor Cortlan R. Schupbach

Cortlan R. Schupbach 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).

  • Process for the high pressure methylation of 2,6-xylenol
    Patent number: 4126750
    Abstract: High pressure methylation of 2,6-xylenol to produce 2,3,6-trimethylphenol is accomplished by maintaining the methanol/2,6-xylenol feed at temperature and pressures sufficient to keep the feed liquid in a reactor head then forcing the feed through orifices, expanding the feed into a mixed vapor liquid phase, the feed after expansion being in the range of reaction conditions of pressure and temperature while in the presence of the catalyst where the reaction takes place. The process avoids the current problems of uneven feed mixtures and catalyst tube plugging.
    Type: Grant
    Filed: December 5, 1977
    Date of Patent: November 21, 1978
    Assignee: Continental Oil Company
    Inventors: Ronald L. Poe, John F. Scamehorn, Cortlan R. Schupbach