Issued Patents All Time
Showing 1–6 of 6 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 8512556 | Water resistant hatch and hood | Thomas J. Mullen | 2013-08-20 |
| 7951294 | Oil and debris separator | Thomas J. Mullen | 2011-05-31 |
| 7857966 | Storm water inlet apparatus | Thomas J. Mullen | 2010-12-28 |
| 6126817 | Oil and debris separator | Thomas J. Mullen | 2000-10-03 |
| 6074130 | Inside drop system for manholes | — | 2000-06-13 |
| 5553973 | Flumes for manhole inverts | — | 1996-09-10 |