| # | Country | Total Patents | |
|---|---|---|---|
| #1 | United States | 4 | |
| #2 | Canada | 3 | |
| #3 | France | 3 | |
| #4 | Belgium | 1 | |
| #5 | Germany | 1 | |
| #6 | United Kingdom | 1 |
| # | Industry | |
|---|---|---|
| #1 | Transport |
| # | Technology | |
|---|---|---|
| #1 | Ships |
| # | Name | Total Patents |
|---|---|---|
| #1 | Pickrell Jr Hugh E | 4 |
| #2 | Pickrell Hugh E Jr | 3 |
| #3 | Pickrell Hugh Elias Jr | 1 |
| Publication | Filing date | Title |
|---|---|---|
| FR1289939A | Ship transporting loads and method for unloading it | |
| US3148784A | General purpose cargo vessel | |
| US3091204A | Shallow-draft cargo vessel with captive air spaces | |
| FR1243695A | Liquid and dry cargo ship | |
| US3009587A | Cargo vessel | |
| US3033150A | Cargo vessel | |
| CA642443A | Cargo vessel | |
| CA632396A | Cargo vessel | |
| CA695986A | General purpose cargo vessel |