Frank Hacker
10Patents
5h-index
10Co-inventors
59Inventor score
Filing activity: Jun 30, 1999 → Dec 10, 2008
Most-cited inventions
| Patent | Title | Area | Cited by | Status |
|---|---|---|---|---|
| US6155043A | Method for injection duration correction in an internal combustion engine having a secondary-air system | Emerging Cross-Sectional Technologies | 16 | Expired |
| US6973777B2 | System and method for monitoring the feeding of secondary air into the exhaust as of an internal combustion engine | Emerging Cross-Sectional Technologies | 11 | Expired |
| US7234333B2 | Machine for bending rod-shaped or tubular workpieces | Performing Operations; Transporting | 6 | Expired |
| US8024108B2 | Method for monitoring the secondary air system in an exhaust-gas purification system | Emerging Cross-Sectional Technologies | 5 | Active |
| US7293444B2 | Bending apparatus for rod-shaped and tubular workpieces | Performing Operations; Transporting | 5 | Expired |
| US6684629B2 | Method for checking the conversion capacity of a catalytic element for converting ozone | Performing Operations; Transporting | 4 | Expired |
| US8364377B2 | Method and device for determining the combustion lambda value of an internal combustion engine | Emerging Cross-Sectional Technologies | 1 | Active |
| US7941266B2 | Method and device for controlling an internal combustion engine in stop/start operation | Emerging Cross-Sectional Technologies | 1 | Active |
| US6877354B2 | Method for balancing ozone sensors | Emerging Cross-Sectional Technologies | 1 | Expired |
| US8494753B2 | Method and device for operating an internal combustion engine | Emerging Cross-Sectional Technologies | 0 | Active |
Source: USPTO / EPO open patent data. Inventor disambiguation is heuristic; counts are objective bibliographic measures.