Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 7275366 | High thermal efficiency Selective Catalytic Reduction (SCR) system | John G. Powell, Henning Ottsen | 2007-10-02 |
| 7258710 | Maritime emissions control system | Henning Ottsen, John G. Powell | 2007-08-21 |