Patents by Inventor Jeffrey S. Rieck

Jeffrey S. Rieck 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).

  • Catalyst and metal ferrites for reduction of hydrogen sulfide emissions from automobile exhaust
    Patent number: 4916105
    Abstract: A catalyst, which is capable of controlling not only HC, CO and NO.sub.x, but also H.sub.2 S emission from the tail pipe of catalytic converter automobiles, is made of platinum-group metals promoted by rare earth oxides and containing a metal ferrite. The ferrite is present in an H.sub.2 S gettering amount and in an amount up to about 20 weight % of the catalyst. The catalyst comprises an alumina support and is applied as a washcoat to a substrate, such as a honeycomb monolith made from ceramic or metal.
    Type: Grant
    Filed: February 7, 1989
    Date of Patent: April 10, 1990
    Assignee: W. R. Grace & Co.-Conn.
    Inventors: Jeffrey S. Rieck, Wilson Suarez, Joseph E. Kubsh