Top Inventors at Opel All Time
| Rank | Name | Patents |
|---|---|---|
| 1 | Geoff W. Taylor | 20 |
| 2 | Jianhong Cai | 8 |
| 3 | Scott W. Duncan | 6 |
| #4 | Daniel C. Upp | 3 |
| #5 | Edward J. Linke | 3 |
| #6 | Rohinton S. Dehmubed | 3 |
| #7 | Francisco A. Middleton | 1 |
| Rank | Name | Patents |
|---|---|---|
| 1 | Geoff W. Taylor | 20 |
| 2 | Jianhong Cai | 8 |
| 3 | Scott W. Duncan | 6 |
| #4 | Daniel C. Upp | 3 |
| #5 | Edward J. Linke | 3 |
| #6 | Rohinton S. Dehmubed | 3 |
| #7 | Francisco A. Middleton | 1 |