Issued Patents All Time
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4369719 | Vermiculite as a deposit modifier in coal fired boilers | Gary G. Engstrom | 1983-01-25 |
| 4256703 | Fly ash collection | Shyam N. S. Dixit, David A. Carter | 1981-03-17 |
| 4245573 | Air heater corrosion prevention | Shyam N. S. Dixit, David A. Carter | 1981-01-20 |