Patents by Inventor Mark L. Nelson

Mark L. Nelson 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).

  • Residual oil sludge dispersant
    Patent number: 4516981
    Abstract: A non-ionic composition for dispersing sludge and causing rapid separation of water for easy removal, in residual oils is formed from a blend of N-hexanol, diethylene glycol methyl ether and isooctyl phenyl polyethoxy ethanol. The dispersant, when used in 1:1,000-4,000 parts of dispersant to parts of oil, causes dispersion of the sludge and eliminates the need for physically removing the sludge.
    Type: Grant
    Filed: January 9, 1984
    Date of Patent: May 14, 1985
    Inventors: Otis L. Nelson, Jr., Mark L. Nelson