Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6309139 | Manhole with extension wings | — | 2001-10-30 |
| 6077448 | Oil/grit interceptor | Matthew James Wilkinson | 2000-06-20 |
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6309139 | Manhole with extension wings | — | 2001-10-30 |
| 6077448 | Oil/grit interceptor | Matthew James Wilkinson | 2000-06-20 |