Issued Patents 1997
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5645756 | Hardness suppression in urea solutions | W. Robert Epperly, Barry N. Sprague, Thure von Harpe | 1997-07-08 |
| 5616307 | Boiler operation with decreased NO.sub.x and waste water discharge | Vincent M. Albanese, Roy A. Johnson | 1997-04-01 |