Issued Patents All Time
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6155183 | Method and apparatus for reducing NO.sub.x emissions from a multiple-intertube pulverized-coal burner | John J. Letcavits | 2000-12-05 |
| 5960723 | Method and apparatus for reducing NO.sub.X emmissions from a multiple-intertube pulverized-coal burner | John J. Letcavits | 1999-10-05 |
| 5771823 | Method and apparatus for reducing NO.sub.x emissions from a multiple-intertube pulverized-coal burner | John J. Letcavits | 1998-06-30 |