| # | Country | Total Patents | |
|---|---|---|---|
| #1 | France | 4 | |
| #2 | United Kingdom | 4 | |
| #3 | Sweden | 4 | |
| #4 | Germany | 3 | |
| #5 | Australia | 2 | |
| #6 | Spain | 2 | |
| #7 | Finland | 2 | |
| #8 | Portugal | 2 | |
| #9 | United States | 2 | |
| #10 | Denmark | 1 | |
| #11 | Japan | 1 | |
| #12 | Netherlands | 1 | |
| #13 | Norway | 1 |
| # | Industry | |
|---|---|---|
| #1 | Civil engineering | |
| #2 | Mechanical elements | |
| #3 | Packaging and shipping | |
| #4 | Transport |
| # | Technology | |
|---|---|---|
| #1 | Compressed gas holders | |
| #2 | Structural elements | |
| #3 | Containers for goods storage | |
| #4 | Fire-fighting | |
| #5 | Swimming pools | |
| #6 | Ships | |
| #7 | Hydraulic engineering | |
| #8 | Foundations and excavations |
| # | Name | Total Patents |
|---|---|---|
| #1 | Hendriks Nicolaas Arie | 6 |
| #2 | Hendriks N A | 5 |
| #3 | Voskamp W | 2 |
| #4 | Van Weele A F | 1 |
| #5 | Uiremu Fuosukamupu | 1 |
| #6 | Voskamp Willem | 1 |
| Publication | Filing date | Title |
|---|---|---|
| GB2040234A | Floating apparatus | |
| US4074485A | Safety wall for a storage tank | |
| DE2545527A1 | STORAGE TANK WITH SECURITY WALL CONSTRUCTION | |
| GB1389370A | Collapsible weir |