| 9580335 |
Water treatment apparatus incorporating walnut shell filter media and a draft tube system |
Chad L. Felch, Stuart J. Munson, Eric A. Lorge, Bryan J. Kumfer, Matthew Patterson |
2017-02-28 |
| 8747667 |
Water filter apparatus incorporating walnut shell filter media and a draft tube system |
Chad L. Felch, Eric A. Lorge, Bryan J. Kumfer, Stuart J. Munson, Matthew Patterson |
2014-06-10 |
| 8715512 |
Systems and methods for liquid separation |
Edward J. Godeaux, Asadollah Hayatdavoudi, Curtis D. Cooley |
2014-05-06 |
| 8551341 |
Suspended media membrane biological reactor system including suspension system and multiple biological reactor zones |
William G. Conner, Mohammed A. AL-HAJRI, Thomas E. Schultz, Chad L. Felch, Matthew Patterson +2 more |
2013-10-08 |
| 7678268 |
Wastewater treatment system |
Duane R. Smith, Lori Marten, John A. Meidl, Thomas J. Vollstedt, Robert J. Wenta +2 more |
2010-03-16 |
| 7431845 |
Method of clarifying oily waste water |
Maria B. Manek, Kirk E. Wells, Hester A. Clever, William K. Stephenson |
2008-10-07 |
| 7282136 |
Method of dispersing hydrocarbon foulants in hydrocarbon processing fluids |
— |
2007-10-16 |
