Issued Patents All Time
Showing 1–5 of 5 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6176188 | Waste materials processing apparatus and method | Roger D. Eshleman, Earl H. Sigman, John K. Pollard, Jr. | 2001-01-23 |
| 6055916 | Waste material processing apparatus and method | Roger D. Eshleman, Earl H. Sigman, John K. Pollard, Jr. | 2000-05-02 |
| 6050204 | Waste material processing apparatus | Roger D. Eshleman, Earl H. Sigman, John K. Pollard, Jr. | 2000-04-18 |
| 5501159 | Method of controlling hydrocarbon release rate by maintaining target oxygen concentration in discharge gases | Roger D. Eshleman | 1996-03-26 |
| 5353719 | Apparatus and method for controlled processing of materials | Roger D. Eshleman | 1994-10-11 |