Issued Patents All Time
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5948269 | Process for the removal and suppression of dissolved hydrogen sulfide and other malodorous compounds and reduction of acidity in liquid and sludge wastewater systems | — | 1999-09-07 |
| 5702240 | Rotary positive displacement blower having a diverging outlet part | Alan D. O'Neal, Carl R. Coles | 1997-12-30 |
| 4899777 | Thermally activated pressure relief plug | Alan D. O'Neal | 1990-02-13 |