Patents by Inventor Neal Franklin Blaine, deceased

Neal Franklin Blaine, deceased 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).

  • Solvent extraction of oil from tar sands utilizing a trichloroethylene solvent
    Patent number: 4046669
    Abstract: Oil is efficiently solvent extracted from tar sands utilizing a trichloroethylene solvent at mild conditions. The process preferably utilizes minor amounts of surfactant and polyelectrolytes. The process has resulted in unexpectedly high yields of oil with unexpectedly low solvent loss.
    Type: Grant
    Filed: January 19, 1976
    Date of Patent: September 6, 1977
    Inventors: Neal Franklin Blaine, deceased, Geneva Blaine, executrix