Helmut Denz
93Patents
21h-index
102Co-inventors
91Inventor score
Filing activity: Jun 5, 1981 → Nov 25, 2011
Most-cited inventions
| Patent | Title | Area | Cited by | Status |
|---|---|---|---|---|
| US6167755A | Device for determining load in an internal combustion engine | Mechanical Engineering; Lighting; Heating | 198 | Expired |
| US5193512A | Tank-venting system for a motor vehicle and method for checking the operability thereof | Mechanical Engineering; Lighting; Heating | 88 | Expired |
| US4856465A | Multidependent valve timing overlap control for the cylinders of an internal combustion engine | Emerging Cross-Sectional Technologies | 73 | Expired |
| US4550704A | Multi-cylinder internal combustion engine having disconnectable groups of cylinders | Emerging Cross-Sectional Technologies | 53 | Expired |
| US5311138A | Device for monitoring the functon of an electric load, its drive and the associated connections | Physics | 44 | Expired |
| US5197442A | Tank-venting arrangement and method of operating the same | Mechanical Engineering; Lighting; Heating | 40 | Expired |
| US4794790A | Diagnostic method and arrangement for quantitatively checking actuators in internal combustion engines | Emerging Cross-Sectional Technologies | 37 | Expired |
| US5669357A | Cylinder-selective injection system | Mechanical Engineering; Lighting; Heating | 36 | Expired |
| US5398661A | Method and arrangement for checking the operability of a tank-venting system | Performing Operations; Transporting | 35 | Expired |
| US5537322A | System and method for determining a gradient speed of a shaft driven by an internal combustion engine | Physics | 34 | Expired |
| US5186153A | Tank-venting arrangement for a motor vehicle and method for checking the operability thereof | Emerging Cross-Sectional Technologies | 32 | Expired |
| US5205263A | Tank-venting apparatus as well as a method and an arrangement for checking the same | Performing Operations; Transporting | 28 | Expired |
| US5195498A | Tank-venting apparatus as well as a method and arrangement for checking the tightness thereof | Mechanical Engineering; Lighting; Heating | 26 | Expired |
| US5460141A | Method and apparatus for checking the tightness of a tank-venting system | Mechanical Engineering; Lighting; Heating | 25 | Expired |
| US4389994A | Internal combustion engine control system for use with turbo-charged engine, and method | Emerging Cross-Sectional Technologies | 24 | Expired |
| US6691653B2 | Electronic method and device for the control of gas exchange valves of an internal combustion engine having a variable opening function | Emerging Cross-Sectional Technologies | 23 | Expired |
| US5144927A | Method for detecting misfires in an internal combustion engine | Physics | 23 | Expired |
| US5592922A | Venting apparatus for a fuel system of an internal combustion engine | Mechanical Engineering; Lighting; Heating | 23 | Expired |
| US5460134A | Transmitter arrangement for cylinder identification in an internal combustion engine having n cylinders | Emerging Cross-Sectional Technologies | 22 | Expired |
| US5553577A | Apparatus for checking the tightness of a tank venting system | Mechanical Engineering; Lighting; Heating | 22 | Expired |
| US5450833A | Breather for an internal combustion engine fuel tank | Mechanical Engineering; Lighting; Heating | 22 | Expired |
| US5245972A | Sequential fuel injection method | Emerging Cross-Sectional Technologies | 20 | Expired |
| US5463998A | Method and arrangement for checking the operability of a tank-venting system | Mechanical Engineering; Lighting; Heating | 20 | Expired |
| US5054452A | Method and apparatus for detecting a fault condition of a lambda probe | Physics | 19 | Expired |
| US5090387A | Method and arrangement for checking the operational capability of an exhaust-gas probe heater and the supply system thereof | Physics | 18 | Expired |
Source: USPTO / EPO open patent data. Inventor disambiguation is heuristic; counts are objective bibliographic measures.