Issued Patents All Time
Showing 1–5 of 5 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4653698 | Safety system for coal pulverizers | Marshall Cooper | 1987-03-31 |
| 4574746 | Process heater control | Marion A. Keyes, IV | 1986-03-11 |
| 4575334 | Loss minimization combustion control system | Marion A. Keyes, IV, Michael P. Lukas | 1986-03-11 |
| 4492559 | System for controlling combustibles and O.sub.2 in the flue gases from combustion processes | — | 1985-01-08 |
| 4286472 | Flexible filter | — | 1981-09-01 |