Inventor · Keltern, DE

Alfred Elsässer

19Patents
3h-index
27Co-inventors
52Inventor score

Filing activity: Aug 16, 2002 → Dec 10, 2010

Most-cited inventions

PatentTitleAreaCited byStatus
US8191861B2 Control valve for controlling a gas flow Mechanical Engineering; Lighting; Heating 4 Active
US8746216B2 Internal combustion engine and fresh air system Emerging Cross-Sectional Technologies 4 Active
US7591256B2 Exhaust gas recirculation apparatus for an internal combustion engine and the respective operating method Emerging Cross-Sectional Technologies 3 Active
US7623012B2 Electromagnetic actuator drive Electricity 3 Active
US7789064B2 Piston engine Emerging Cross-Sectional Technologies 2 Active
US7418945B2 Fresh gas system and operating method for a piston engine Emerging Cross-Sectional Technologies 2 Active
US8176902B2 Internal combustion engine system Emerging Cross-Sectional Technologies 2 Active
US8683986B2 Method for diagnosing additional valves Emerging Cross-Sectional Technologies 2 Active
US7387116B2 Piston engine and respective operating method Emerging Cross-Sectional Technologies 1 Active
US8365702B2 Internal combustion engine Emerging Cross-Sectional Technologies 1 Active
US8701637B2 Internal combustion engine exhaust gas recirculation apparatus and method of operation Emerging Cross-Sectional Technologies 1 Active
US7637278B2 Switching valve and respective manufacturing method Emerging Cross-Sectional Technologies 0 Active
US8857177B2 Piston engine Emerging Cross-Sectional Technologies 0 Active
US8991366B2 Fresh air system Emerging Cross-Sectional Technologies 0 Active
US7461644B2 Method for controlling an internal combustion engine Emerging Cross-Sectional Technologies 0 Active
US8844284B2 Internal combustion engine system Emerging Cross-Sectional Technologies 0 Active
US8534255B2 Valve unit for an internal combustion engine and internal combustion engine Emerging Cross-Sectional Technologies 0 Active
US8899042B2 Internal combustion engine and associated operational method Emerging Cross-Sectional Technologies 0 Active
US7007921B2 High-speed controlling device Emerging Cross-Sectional Technologies 0 Expired

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