| # | Country | Total Patents | |
|---|---|---|---|
| #1 | United Kingdom | 3 | |
| #2 | Austria | 2 | |
| #3 | Canada | 2 | |
| #4 | Switzerland | 2 | |
| #5 | Denmark | 2 | |
| #6 | Spain | 2 | |
| #7 | United States | 1 |
| # | Technology | |
|---|---|---|
| #1 | Dry-docking of vessels | |
| #2 | Military vessels | |
| #3 | Ships |
| # | Name | Total Patents |
|---|---|---|
| #1 | Lee Albert John Frederick | 10 |
| #2 | John Frederick Lee Albert | 2 |
| Publication | Filing date | Title |
|---|---|---|
| US1225662A | Submersible vessel. | |
| GB103860A | Method of and Apparatus for Minimising the Damage to a Ship when Water Enters any Compartment. | |
| GB104700A | A New Method and Means for Immersing a Vessel Below the Surface of the Water and Means for Obtaining Ingress to and Egress from the Vessel when Submerged. | |
| GB191500281A | Method of and Apparatus for the Protection of Vessels and Preventing them from Sinking. | |
| CA211146A | Immersible salvage vessel | |
| CA214521A | Submersible vessel |