Issued Patents All Time
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6325963 | Method for firing ceramic honeycomb bodies | Alan T. Dull, Christopher Steven Witte, Edward F. Zunic | 2001-12-04 |
| 6099793 | Method for firing ceramic honeycomb bodies | Alan T. Dull, Tudor C. Gheorghiu, David L. Oliver, Mark Allen Spetseris, Christopher Steven Witte | 2000-08-08 |
| 6089860 | Method for firing ceramic honeycomb bodies and a tunnel kiln used therefor | Alan T. Dull, Christopher Steven Witte, Edward F. Zunic | 2000-07-18 |
| 6048199 | Tunnel kiln for firing ceramic honeycomb bodies | Alan T. Dull | 2000-04-11 |