Issued Patents All Time
Showing 1–14 of 14 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 10584045 | Conversion of secondary clarifier into an oxic bioreactor by superoxygenation | — | 2020-03-10 |
| 8580125 | Method and apparatus for control of a gas or chemical | David A. Clidence | 2013-11-12 |
| 7754082 | Method and apparatus for control of a gas or chemical | David A. Clidence | 2010-07-13 |
| 7566397 | Superoxygenation of raw wastewater for odor/corrosion control | — | 2009-07-28 |
| 7320749 | Method and apparatus for control of a gas or chemical | David A. Clidence | 2008-01-22 |
| 7163632 | System and method for oxygenation for wastewater treatment | — | 2007-01-16 |
| 6848258 | Gas transfer energy recovery and effervescence prevention apparatus and method | — | 2005-02-01 |
| 6668556 | Gas transfer energy recovery and effervescence prevention apparatus and method | — | 2003-12-30 |
| 6485003 | Gas dissolving apparatus and method | — | 2002-11-26 |
| 6474627 | Gas dissolving apparatus and method | — | 2002-11-05 |
| 6322055 | Gas dissolving apparatus and method | — | 2001-11-27 |
| 5538635 | Method for dissolving gas in liquid including pressurized bubble contactor in sidestream | Eugene E. Mazewski, Peter J. Petit | 1996-07-23 |
| 5411660 | Apparatus for dissolving gas in liquid including pressurized bubble contactor in sidestream | Eugene E. Mazewski, Peter J. Petit | 1995-05-02 |
| 4251365 | Low energy gas transfer system | — | 1981-02-17 |