Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6890172 | Burner with flue gas recirculation | George Stephens, David B. Spicer, Roberto O. Pellizzari, Peter J. Loftus | 2005-05-10 |
| 6877980 | Burner with low NOx emissions | George Stephens, David B. Spicer, Robert R. Trimble, Gautam Gauba | 2005-04-12 |