Issued Patents All Time
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5871349 | Rotary valve thermal oxidizer | Jeffrey C. Johnson, Erwin Hendricks, Theodore R. Wheeler | 1999-02-16 |
| 5770165 | Regenerative thermal oxidizer with floor-mounted media support | Erwin Hendricks, Gary L. Martin, Melanius D'Souza | 1998-06-23 |