Patents by Inventor Dennis J. Sepelak

Dennis J. Sepelak 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).

  • Trihydroxybenzene boiler corrosion inhibitor compositions and method
    Patent number: 4895703
    Abstract: A method for inhibiting corrosion due to dissolved oxygen wherein trihydroxybenzene compounds, alone or in combination with conventional oxygen scavengers, preferably hydroquinone, are added to boiler water to prevent corrosion by reducing dissolved oxygen levels in boiler feedwater.
    Type: Grant
    Filed: August 15, 1988
    Date of Patent: January 23, 1990
    Assignee: Calgon Corporation
    Inventors: John D. Zupanovich, Lois J. Neil, Dennis J. Sepelak
  • Silyl carbamates and synthesis thereof
    Patent number: 4496754
    Abstract: Silyl carbamates are produced by the reaction under suitable reaction conditions of silanes bearing at least one silicon-hydrogen bond of the formula: R.sub.4-x SiH.sub.x with an ammonium carbamate of the formula: R'R"NH.sub.2.sup..sym. R'R"NCO.sub.2.sup..crclbar.. This novel route is much simpler and more direct than those previously known and provides a new classes of silyl carbamates.
    Type: Grant
    Filed: December 28, 1982
    Date of Patent: January 29, 1985
    Assignee: Union Carbide Corporation
    Inventors: Bernard Kanner, Steven P. Hopper, Dennis J. Sepelak