Patents by Inventor Mark K Krage

Mark K Krage 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).

  • Apparatus and method for determining oil change based upon oil viscosity
    Patent number: 6901788
    Abstract: An oil change sensing system for an internal combustion engine, having an oil pressure sensor adapted to provide an oil pressure signal to an engine control module; an oil temperature sensor adapted to provide an oil temperature signal to the engine control module; wherein the engine control module comprises an algorithm which determines the oil's viscosity by using the measured oil temperature and oil pressure and the determined oil viscosity and a fresh oil viscosity are used to determine whether the oil is in a preferred operating range.
    Type: Grant
    Filed: April 25, 2003
    Date of Patent: June 7, 2005
    Assignee: Delphi Technologies, Inc.
    Inventors: Taeyoung Han, Su-Chee Simon Wang, Mark K Krage, Yingjie Lin
  • Apparatus and method for determining oil change based upon oil viscosity
    Patent number: 6895807
    Abstract: An oil change sensing system for an internal combustion engine, having an oil pressure sensor adapted to provide an oil pressure signal to an engine control module; an oil temperature sensor adapted to provide an oil temperature signal to the engine control module; wherein the engine control module comprises an algorithm which determines the oil's viscosity by using the measured oil temperature and oil pressure and the determined oil viscosity and a fresh oil viscosity are used to determine whether the oil is in a preferred operating range.
    Type: Grant
    Filed: September 23, 2004
    Date of Patent: May 24, 2005
    Assignee: Delphi Technologies, Inc.
    Inventors: Taeyoung Han, Su-Chee Simon Wang, Mark K Krage, Yingjie Lin