Showing 1–4 of 4 inventors
| Rank | Inventor | Primary Company | Patents |
|---|---|---|---|
| 1 | Roger Howitt | Cookson Group Plc | 1 |
| 1 | Roger A. Bullivant | Roger Bullivant Of Texas | 1 |
| 1 | Timothy J. Bedford | — | 1 |
| 1 | Granville C. James | Coal Industry (Patents) Limited | 1 |
4 patents · 4 inventors
Ranked #7,257 of 22,654 cities Top 35%
Showing 1–4 of 4 inventors
| Rank | Inventor | Primary Company | Patents |
|---|---|---|---|
| 1 | Roger Howitt | Cookson Group Plc | 1 |
| 1 | Roger A. Bullivant | Roger Bullivant Of Texas | 1 |
| 1 | Timothy J. Bedford | — | 1 |
| 1 | Granville C. James | Coal Industry (Patents) Limited | 1 |