| # | Country | Total Patents | |
|---|---|---|---|
| #1 | Germany | 2 | |
| #2 | Finland | 2 | |
| #3 | France | 2 | |
| #4 | Canada | 1 | |
| #5 | Denmark | 1 | |
| #6 | United Kingdom | 1 | |
| #7 | Greece | 1 | |
| #8 | Norway | 1 | |
| #9 | Sweden | 1 | |
| #10 | United States | 1 |
| # | Industry | |
|---|---|---|
| #1 | Transport |
| # | Technology | |
|---|---|---|
| #1 | Air-cushion vehicles |
| # | Name | Total Patents |
|---|---|---|
| #1 | Cross Frederick George | 3 |
| #2 | Cross F | 3 |
| #3 | George Cross Frederick | 2 |
| #4 | Maddock Owen Richard | 2 |
| #5 | Maddock Owen R | 1 |
| #6 | Cross Frederick G | 1 |
| #7 | Owen Maddock Richard | 1 |
| #8 | Cross Fredrick George | 1 |
| #9 | Maddock O | 1 |
| Publication | Filing date | Title |
|---|---|---|
| DE1278256B | Hovercraft in full chamber design | |
| US3483939A | Skirt for plenum-type air cushion vehicle | |
| DE1278849B | Hovercraft in full chamber design | |
| GB1028045A | Improvements in or relating to air cushion vehicles | |
| CA835216A | Skirt for plenum-type air cushion vehicle |