Issued Patents All Time
Showing 1–4 of 4 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6256809 | Pollution prevention system | Andrew M. Hahn | 2001-07-10 |
| 6071188 | Damper and exhaust system that maintains constant air discharge velocity | Charles H. O'Neill, Ronald L. Benjamin | 2000-06-06 |
| 5880380 | High containment sampler | Kenton L. Shultis | 1999-03-09 |
| 5832973 | Sanitary carbon charging system | Kenton L. Shultis, Gary V. Faigle, Connie Esenther | 1998-11-10 |