Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 7444891 | In-water hull cleaning sampling method | David Bartholomew Chadwick, Robert M. Cook | 2008-11-04 |
| 7437959 | In-water hull cleaning sampling device | David Bartholomew Chadwick, Robert M. Cook | 2008-10-21 |