Inventor · Howell, MI, US

Jon C. Darrow

6Patents
5h-index
5Co-inventors
45Inventor score

Filing activity: Apr 25, 2005 → Aug 2, 2007

Most-cited inventions

PatentTitleAreaCited byStatus
US7063057B1 Method for effectively diagnosing the operational state of a variable valve lift device Emerging Cross-Sectional Technologies 47 Expired
US7047924B1 Method for diagnosing the operational state of a two-step variable valve lift device Emerging Cross-Sectional Technologies 26 Expired
US7314034B1 System for verifying cylinder deactivation status in a multi-cylinder engine Emerging Cross-Sectional Technologies 19 Active
US7047957B1 Method and apparatus for monitoring a multiple step valve lifter Emerging Cross-Sectional Technologies 7 Expired
US7325534B1 Supplemental internal air cooling of an internal combustion engine Mechanical Engineering; Lighting; Heating 6 Active
US7571047B2 Detection of valve deactivation failure by monitoring exhaust temperature Mechanical Engineering; Lighting; Heating 2 Active

Source: USPTO / EPO open patent data. Inventor disambiguation is heuristic; counts are objective bibliographic measures.