Patents by Inventor Dervis A. Yetken

Dervis A. Yetken 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).

  • Exhaust gas additive/treatment system and mixer for use therein
    Patent number: 8141353
    Abstract: An exhaust mixer (16) is provided for use in an engine exhaust system (10) downstream from an additive injector (14). The mixer (16) includes a first wall structure (20), and a second wall structure (22) carrying a set of mixer vanes (30), the second wall structure (22) being cone shaped and extending radially outwardly from the first wall structure (20).
    Type: Grant
    Filed: April 25, 2008
    Date of Patent: March 27, 2012
    Assignee: Tenneco Automotive Operating Company Inc.
    Inventors: Guanyu Zheng, Yongyue Zhang, Jeremy D. Popovich, Dervis A. Yetken, Adam J. Kotrba