Patents by Inventor Joseph B. Wegrzyn

Joseph B. Wegrzyn 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).

  • Nitrogen oxides reduction using a urea hydrolysate
    Patent number: 5399325
    Abstract: The present invention relates to a process for the use of a urea hydrolysate for nitrogen oxides reductions. More particularly, the process involves forming a urea hydrolysate and introducing the hydrolysate into a combustion effluent under conditions effective for the reduction of nitrogen oxides.
    Type: Grant
    Filed: February 26, 1992
    Date of Patent: March 21, 1995
    Assignee: Nalco Fuel Tech
    Inventors: Thure von Harpe, Reinhard Pachaly, M. Linda Lin, Daniel V. Diep, Joseph B. Wegrzyn