Ralf Hirche
4Patents
4h-index
7Co-inventors
39Inventor score
Filing activity: Apr 17, 1998 → Apr 8, 2004
Most-cited inventions
| Patent | Title | Area | Cited by | Status |
|---|---|---|---|---|
| US6030189A | Friction vacuum pump with intermediate inlet | Mechanical Engineering; Lighting; Heating | 20 | Expired |
| US7030381B2 | Method for detecting a gas using an infrared gas analyser and gas analyser suitable for carrying out said method | Physics | 11 | Expired |
| US7717681B2 | Leak detector comprising a vacuum apparatus | Physics | 9 | Expired |
| US7082813B2 | Test gas leakage detector | Physics | 8 | Expired |
Source: USPTO / EPO open patent data. Inventor disambiguation is heuristic; counts are objective bibliographic measures.