Patents by Inventor Stanley D. Roth

Stanley D. Roth 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).

  • NO removal from automotive exhaust for lean/rich systems
    Patent number: 10919025
    Abstract: A nitrous oxide (N2O) removal catalyst composition for treating an exhaust stream of an internal combustion engine is provided, containing a platinum group metal (PGM) component on a metal oxide-based support, wherein the N2O removal catalyst composition is in a substantially reduced form, such that it has an oxygen deficiency of about 0.05 mmol oxygen atoms/g or greater, and wherein the N2O removal catalyst composition provides effective removal of at least a portion of N2O from the exhaust stream under lean conditions at a temperature of about 350° C. or lower. N2O removal catalytic articles, systems, and methods are also provided for removing at least a portion of N2O from an exhaust stream under lean, low temperature conditions.
    Type: Grant
    Filed: January 24, 2020
    Date of Patent: February 16, 2021
    Assignee: BASF Corporation
    Inventors: Yuejin Li, Shiang Sung, Stanley D. Roth, Torsten Neubauer, Susanne Stiebels