Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5388541 | Tanker ship design for reducing cargo spillage | Mark C. Dumas, Stephen A. Dumas | 1995-02-14 |
| 5101750 | Tanker ship hull for reducing cargo spillage | — | 1992-04-07 |
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5388541 | Tanker ship design for reducing cargo spillage | Mark C. Dumas, Stephen A. Dumas | 1995-02-14 |
| 5101750 | Tanker ship hull for reducing cargo spillage | — | 1992-04-07 |