Issued Patents All Time
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6587746 | Process and apparatus for facilitating automatic production of drawing using a CAD system | — | 2003-07-01 |
| 6423275 | Regenerative devices and methods | — | 2002-07-23 |
| 5902183 | Process and apparatus for energy conservation in buildings using a computer controlled ventilation system | — | 1999-05-11 |
| 5770165 | Regenerative thermal oxidizer with floor-mounted media support | Thomas J. Truppi, Erwin Hendricks, Gary L. Martin | 1998-06-23 |
| 5453259 | Two-bed regenerative thermal oxidizer with trap for volatile organic compounds | — | 1995-09-26 |
| 5365863 | Regenerative thermal oxidizer with wood waste burner | — | 1994-11-22 |
| 5346393 | Multiple-bed thermal oxidizer control damper system | — | 1994-09-13 |
| 5259757 | Method and apparatus for smokeless burnout of regenerative thermal oxidizer systems | Marlin D. Plejdrup | 1993-11-09 |