Showing 1–3 of 3 inventors
| Rank | Inventor | Primary Company | Patents |
|---|---|---|---|
| 1 | Marthinus Hendrik Doman | Unknown | 3 |
| 2 | John Joseph Walter Chapa | Unknown | 1 |
| 2 | Richard Douglas Kennett | Syncrude Canada | 1 |
5 patents · 3 inventors
Ranked #68,584 of 111,555 cities Top 65%
Showing 1–3 of 3 inventors
| Rank | Inventor | Primary Company | Patents |
|---|---|---|---|
| 1 | Marthinus Hendrik Doman | Unknown | 3 |
| 2 | John Joseph Walter Chapa | Unknown | 1 |
| 2 | Richard Douglas Kennett | Syncrude Canada | 1 |