Randolf Rolff
13Patents
4h-index
16Co-inventors
53Inventor score
Filing activity: Apr 11, 2001 → Mar 28, 2017
Most-cited inventions
| Patent | Title | Area | Cited by | Status |
|---|---|---|---|---|
| US7159445B2 | Sniffing leak detector and method for operation thereof | Physics | 16 | Expired |
| US7030381B2 | Method for detecting a gas using an infrared gas analyser and gas analyser suitable for carrying out said method | Physics | 11 | Expired |
| US8537019B2 | Sniffing leak detector | Physics | 7 | Active |
| US7168287B2 | Reference leakage device for leak sniffer detector | Physics | 6 | Expired |
| US7107821B2 | Leak indicator with test leak and test leak for integration into a leak indicator | Physics | 4 | Expired |
| US8117886B2 | Leak detector with a leak detector testing device | Physics | 4 | Active |
| US7444854B2 | Leak indicator with test leak and test leak for integration into a leak detector | Physics | 3 | Active |
| US8302454B2 | Method for calibrating a mass spectrometric sniffing leak detector | Physics | 1 | Active |
| US8850866B2 | Method for functionally testing a leak detector | Physics | 0 | Active |
| US7802461B2 | Method and device for detecting leaks | Physics | 0 | Active |
| US10837857B2 | Gas leak search using a test gas spray device | Physics | 0 | Active |
| US8416091B2 | Sniffing probe | Physics | 0 | Expired |
| US7331216B2 | Leak rate measuring device | Physics | 0 | Expired |
Source: USPTO / EPO open patent data. Inventor disambiguation is heuristic; counts are objective bibliographic measures.