Patents by Inventor Krishna C. Tewari

Krishna C. Tewari 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).

  • SRC Residual fuel oils
    Patent number: 4547201
    Abstract: Coal solids (SRC) and distillate oils are combined to afford single-phase blends of residual oils which have utility as fuel oils substitutes. The components are combined on the basis of their respective polarities, that is, on the basis of their heteroatom content, to assure complete solubilization of SRC. The resulting composition is a fuel oil blend which retains its stability and homogeneity over the long term.
    Type: Grant
    Filed: December 14, 1983
    Date of Patent: October 15, 1985
    Assignee: International Coal Refining Co.
    Inventors: Krishna C. Tewari, Edward P. Foster