Issued Patents All Time
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 8701572 | Low NOx nozzle tip for a pulverized solid fuel furnace | Richard E. Donais, Todd D. Hellewell, Robert Drennan Lewis, Galen H. Richards | 2014-04-22 |
| 6089171 | Minimum recirculation flame control (MRFC) pulverized solid fuel nozzle tip | Milton A. Fong, Todd D. Hellewell, Robert Drennan Lewis, Charles Q. Maney, Srivats Srinivasachar +1 more | 2000-07-18 |
| 5315939 | Integrated low NO.sub.x tangential firing system | Michael J. Rini, Todd D. Hellewell, Patrick L. Jennings, Richard C. LaFlesh, David K. Anderson | 1994-05-31 |
| 5113771 | Pulverized coal fuel injector | Michael J. Rini | 1992-05-19 |