Issued Patents All Time
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 8490292 | Pulse combustion dryer apparatus and methods | David A. Mirko, James A. Rehkopf | 2013-07-23 |
| 8037620 | Pulse combustion dryer apparatus and methods | David A. Mirko, James A. Rehkopf | 2011-10-18 |
| 6966941 | Sewage sludge treatment | John Arthur Bewsey, Oliver Hart | 2005-11-22 |