Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5647892 | Method for acid gas emission control | John McKenna, Kenneth W. Appell, Joseph F. Szalay | 1997-07-15 |
| 5624644 | Apparatus for acid gas emission control | John McKenna, Kenneth W. Appell, Joseph F. Szalay | 1997-04-29 |