Inventor · Colona, IL, US

Roger Urven

10Patents
5h-index
16Co-inventors
55Inventor score

Filing activity: May 30, 2003 → Aug 14, 2008

Most-cited inventions

PatentTitleAreaCited byStatus
US7185614B2 Double bowl piston Emerging Cross-Sectional Technologies 25 Expired
US7422000B2 Method of transitioning between operating modes in an internal combustion engine Emerging Cross-Sectional Technologies 12 Expired
US7032566B2 Fuel injector nozzle for an internal combustion engine Mechanical Engineering; Lighting; Heating 10 Expired
US7219649B2 Engine system and method of operating same over multiple engine load ranges Emerging Cross-Sectional Technologies 7 Expired
US8006482B2 Method of purging fluid injector by heating Emerging Cross-Sectional Technologies 6 Active
US7909271B2 Fuel injector nozzle for an internal combustion engine Mechanical Engineering; Lighting; Heating 5 Active
US7444980B2 Fuel injector nozzle for an internal combustion engine Mechanical Engineering; Lighting; Heating 5 Active
US8484947B2 Fluid injector having purge heater Emerging Cross-Sectional Technologies 2 Active
US7685809B2 On-board ammonia generation and exhaust after treatment system using same Mechanical Engineering; Lighting; Heating 2 Active
US7290520B2 Fuel injector nozzle for an internal combustion engine Mechanical Engineering; Lighting; Heating 0 Expired

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