Issued Patents All Time
Showing 1–4 of 4 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6968854 | Manhole base | John Munro | 2005-11-29 |
| 6749746 | Catch basin trap with filter | — | 2004-06-15 |
| 6386550 | Subterranean coupler | Michael Alan Greer | 2002-05-14 |
| 6132603 | Trap for catch basins and process of making same | Danniel Bailey | 2000-10-17 |