Patents by Inventor S. David Cifrulak

S. David Cifrulak 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).

  • Removal of acidic contaminants from gas streams by caustic impregnated activated carbon
    Patent number: 4215096
    Abstract: Gas streams contaminated with acid and acid precursor gases and vapors are purified by contacting the gas streams with activated carbon impregnated with sodium hydroxide.
    Type: Grant
    Filed: November 9, 1978
    Date of Patent: July 29, 1980
    Assignee: Calgon Corporation
    Inventors: Rabindra K. Sinha, Charles K. Polinsky, S. David Cifrulak, Norman J. Wagner