Stefan Herold
9Patents
4h-index
31Co-inventors
57Inventor score
Filing activity: Sep 19, 1997 → Nov 14, 2019
Most-cited inventions
| Patent | Title | Area | Cited by | Status |
|---|---|---|---|---|
| US6145761A | Fuel injection valve | Mechanical Engineering; Lighting; Heating | 24 | Expired |
| US6170767A | Fuel injection valve | Mechanical Engineering; Lighting; Heating | 18 | Expired |
| US6182912A | Fuel injection valve | Emerging Cross-Sectional Technologies | 13 | Expired |
| US6178637A | Method and apparatus for producing rotationally symmetrical valve seat faces of high surface quality in valves | Emerging Cross-Sectional Technologies | 4 | Expired |
| US10460884B2 | Switching arrangement for a control transformer, in particular polarity switching means | Electricity | 2 | Active |
| US11545313B2 | Load transfer switch for on-load tap changer, and on-load tap changer | Electricity | 1 | Active |
| US10192693B2 | Tap changer, force-storage unit, and controlled-backlash coupling therebetween | Electricity | 1 | Active |
| US11837419B2 | Cam disk contours within an on-load tap changer | Electricity | 0 | Active |
| US11195672B2 | Switch element for tap changer, and tap changer | Electricity | 0 | Active |
Source: USPTO / EPO open patent data. Inventor disambiguation is heuristic; counts are objective bibliographic measures.