Issued Patents 2011
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 7914230 | Corrugated leaching chamber with hollow pillar supports | Roy E. Moore, Jr., Dennis F. Hallahan, Christopher R. Cardillo | 2011-03-29 |
| 7914231 | Leaching chamber having a diagonally ribbed top | Douglas Hardesty | 2011-03-29 |
| D630294 | Corrugated leaching chamber | Douglas Hardesty | 2011-01-04 |