Patents by Inventor Ronald Elsdon

Ronald Elsdon 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).

  • Suppression of aldehyde formation in xylene
    Patent number: 4255598
    Abstract: Xylenes can by merely being contacted with air over a period of time or during storage at temperatures upward from 60.degree. C. develop from 55 to 60 ppm of tolualdehyde. Such tolualdehyde formation can be suppressed by dissolving in the xylene a small amount of thiodipropionic acid or a di(alkyl)ester thereof.
    Type: Grant
    Filed: December 26, 1979
    Date of Patent: March 10, 1981
    Assignee: Standard Oil Company (Indiana)
    Inventors: Ronald Elsdon, Dennis L. Stauffenberg