Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5412826 | Suction cleaner for submerged surfaces | — | 1995-05-09 |
| 5059970 | Navigational aid | Dan C. Cawood, Geoffrey J. Rawlings, Etienne Rijkheer, Anthony D. B. Holderness | 1991-10-22 |