Issued Patents 2002
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6499914 | Movable self-elevating artificial work island with modular hull | Herman J. Schellstede | 2002-12-31 |
| 6443659 | Movable self-elevating artificial work island with modular hull | — | 2002-09-03 |