Top Inventors at Graphite Sales All Time
| Rank | Name | Patents |
|---|---|---|
| 1 | Kevin L. Burmeister | 4 |
| 2 | Walter H. Carlson | 3 |
| 3 | George C. Hanna | 2 |
| #4 | Gerald B. Zander | 1 |
| #5 | Jose Cordero | 1 |
| #6 | Miguel Rodriguez | 1 |
| #7 | Robert V. Vickers | 1 |
| #8 | Scott Hanna | 1 |
| Rank | Name | Patents |
|---|---|---|
| 1 | Kevin L. Burmeister | 4 |
| 2 | Walter H. Carlson | 3 |
| 3 | George C. Hanna | 2 |
| #4 | Gerald B. Zander | 1 |
| #5 | Jose Cordero | 1 |
| #6 | Miguel Rodriguez | 1 |
| #7 | Robert V. Vickers | 1 |
| #8 | Scott Hanna | 1 |