Issued Patents All Time
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 8992774 | Flume system for a filter system including at least one filter having a filter bed that is periodically washed with liquid, gas or a combination thereof | R. Lee Roberts, Mark Kevin Addison, Andrew Scott Taylor | 2015-03-31 |
| 8333889 | Flume system for a filter system including at least one filter having a filter bed that is periodically washed with liquid, gas or a combination thereof | R. Lee Roberts, Mark Kevin Addison, Andrew Scott Taylor | 2012-12-18 |
| 7820043 | Underdrain system | R. Lee Roberts, Mark Kevin Addison, Aleksandr Ilyin | 2010-10-26 |