Issued Patents All Time
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5775237 | Dry bottom ash handling system | John S. Tomaszek | 1998-07-07 |
| 5738022 | Coal ash collecting vehicle | — | 1998-04-14 |
| 5715762 | Coal ash disposal system | — | 1998-02-10 |
| 5712002 | Telescopic decorative tree | — | 1998-01-27 |
| 5611411 | Turbine lubrication oil filtration safeguard system | — | 1997-03-18 |