Showing 1–3 of 3 inventors
| Rank | Inventor | Primary Company | Patents |
|---|---|---|---|
| 1 | Peter Steinruck | Hoerbiger Ventilwerke Gmbh | 19 |
| 2 | Johann Hoell | Hoffman & Co. Elektrokohle Gesellschaft M.B.H | 8 |
| 3 | Franz Kalchschmid | Sgl Carbon Ag | 1 |
28 patents · 3 inventors
Ranked #32,916 of 111,555 cities Top 30%
Showing 1–3 of 3 inventors
| Rank | Inventor | Primary Company | Patents |
|---|---|---|---|
| 1 | Peter Steinruck | Hoerbiger Ventilwerke Gmbh | 19 |
| 2 | Johann Hoell | Hoffman & Co. Elektrokohle Gesellschaft M.B.H | 8 |
| 3 | Franz Kalchschmid | Sgl Carbon Ag | 1 |