Patents by Inventor Jeffrey Weikert

Jeffrey Weikert 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).

  • System for measuring NOx content of exhaust gas
    Publication number: 20050262833
    Abstract: A system for measuring NOx content of an exhaust gas produced includes at least one controllable valve operable to direct exhaust gas to a NOx sensor only when measurement of the NOx content is desired and to otherwise expose the NOx sensor to ambient air. A control circuit controls the operation of the at least one valve and determines the NOx content of the exhaust gas based on sensory data received from the NOx sensor.
    Type: Application
    Filed: May 27, 2004
    Publication date: December 1, 2005
    Inventors: Eric Andrews, Jeffrey Weikert