Issued Patents All Time
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| RE33118 | Exhaust processor | Mark A. Sickels, Robert T. Usleman | 1989-11-28 |
| 4625511 | Exhaust processor | Mark A. Sickels, Robert T. Usleman | 1986-12-02 |
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| RE33118 | Exhaust processor | Mark A. Sickels, Robert T. Usleman | 1989-11-28 |
| 4625511 | Exhaust processor | Mark A. Sickels, Robert T. Usleman | 1986-12-02 |