Patents by Inventor Gangdhar M. N. Varma

Gangdhar M. N. Varma 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).

  • Non-corrosive creosote and soot removing composition
    Patent number: 4481010
    Abstract: A metallic chloride based creosote and soot removing composition including a phosphate corrosion inhibitor to reduce the corrosive attack on metal flue pipes is provided. The composition includes between about 15-60% metallic chloride, 20-60% trisodium phosphate dodecylhydrate, 15-60% anti-cake agents, such as non-swelling clay, sodium sulfate and tricalcium phosphate and 2-10% combustion initiator, such as wood flour.
    Type: Grant
    Filed: September 22, 1983
    Date of Patent: November 6, 1984
    Assignee: Hercules Chemical Company, Inc.
    Inventors: Leonard S. Mackowiak, Frank E. Ellison, Jay W. Fidler, N. George Tucker, Gangdhar M. N. Varma