Issued Patents All Time
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 8152997 | Stormwater control system and related method | Wesley Johnson, Richard H. Langford, II | 2012-04-10 |
| 7988851 | Stormwater control system and related method | Wesley Johnson, Richard H. Langford, II | 2011-08-02 |
| 7799235 | Fluid filter system and related method | Brian R. McLaughlin, Daniel P. Cobb, Vaikko P. Allen, II, Derek M. Berg | 2010-09-21 |
| 6406218 | Low-flow-contaminant-adsorbing system | — | 2002-06-18 |