Issued Patents 2003
Showing 1–5 of 5 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6626320 | Double walled underground storage tank and method for making the same | — | 2003-09-30 |
| 6564614 | Method and apparatus for vacuum testing water resistant and watertight risers and lids | Albert F. Doris, Douglas Morrissette, James S. Anderson | 2003-05-20 |
| 6558535 | Residential septic tank with seams above sewage line and residential septic tank with stepped ribs | Kaushik Mallick, Brian Garcia, Michael Zais | 2003-05-06 |
| 6551024 | System and method for detecting leaks in underground storage tank | John Burwell, Richard J. Kelber | 2003-04-22 |
| 6516740 | Lift-off cover assembly for a barge | Roderick Annis | 2003-02-11 |