Showing 1–7 of 7 inventors
| Rank | Inventor | Primary Company | Patents |
|---|---|---|---|
| 1 | Gerd Birrenbach | Ciba Specialty Chemicals | 4 |
| 1 | Pius Ponticelli | Brevi S.R.L. | 4 |
| 3 | Martin Gallmann | — | 2 |
| #4 | Adolf Bappert | — | 1 |
| #4 | Michel Loetscher | Niro-Plan Ag | 1 |
| #4 | Sergio Stanisci | Cwa Constructions Sa | 1 |
| #4 | Willy Ackermann | — | 1 |