Showing 1–4 of 4 inventors
| Rank | Inventor | Primary Company | Patents |
|---|---|---|---|
| 1 | Hans-Helmut Friedrich | Ciba-Geigy | 5 |
| 2 | Helmut Knoell | Rohm Co. | 2 |
| 3 | Dieter Klaus-Jurgen Schweinsberg | — | 1 |
| 3 | Gerhard Melzer | Carl Schenck Ag | 1 |
9 patents · 4 inventors
Ranked #3,884 of 20,767 cities Top 20%
Showing 1–4 of 4 inventors
| Rank | Inventor | Primary Company | Patents |
|---|---|---|---|
| 1 | Hans-Helmut Friedrich | Ciba-Geigy | 5 |
| 2 | Helmut Knoell | Rohm Co. | 2 |
| 3 | Dieter Klaus-Jurgen Schweinsberg | — | 1 |
| 3 | Gerhard Melzer | Carl Schenck Ag | 1 |