| # | Country | Total Patents | |
|---|---|---|---|
| #1 | China | 8 | |
| #2 | EPO (European Patent Office) | 4 | |
| #3 | United States | 4 | |
| #4 | Australia | 3 | |
| #5 | Netherlands | 3 | |
| #6 | WIPO (World Intellectual Property Organization) | 3 | |
| #7 | Brazil | 1 | |
| #8 | Canada | 1 | |
| #9 | EAPO (Eurasian Patent Organization) | 1 | |
| #10 | United Kingdom | 1 | |
| #11 | Poland | 1 | |
| #12 | South Africa | 1 |
| # | Industry | |
|---|---|---|
| #1 | Packaging and shipping | |
| #2 | Machine tools | |
| #3 | Textiles and paper | |
| #4 | Materials and metallurgy | |
| #5 | Machines | |
| #6 | Thermal processes |
| # | Technology | |
|---|---|---|
| #1 | Containers for goods storage | |
| #2 | Rolling metal | |
| #3 | Making paper containers | |
| #4 | Metal tempering | |
| #5 | Details of furnaces | |
| #6 | Furnaces | |
| #7 | Unspecified technologies | |
| #8 | Iron and steel production | |
| #9 | Fillers | |
| #10 | Punching metal |
| # | Name | Total Patents |
|---|---|---|
| #1 | Spronk-Dik Anna | 10 |
| #2 | Spronk Johannes Fredericus | 7 |
| #3 | Walker Stephen | 5 |
| #4 | Bodin Andre | 2 |
| #5 | Groot Aldricus M | 1 |
| #6 | Hartog Huibert W Den | 1 |
| #7 | Ras H B | 1 |
| #8 | Hartog A J Den | 1 |
| #9 | Nijveld Erik Marco | 1 |
| #10 | Weber-Caspers Martin Gerhard | 1 |
| Publication | Filing date | Title |
|---|---|---|
| ZA200206790B | Airtight box with manufacturing method and apparatus. | |
| US7285082B1 | Airtight box with manufacturing method and apparatus | |
| EA000387B1 | Method for manufacturing airtight and moisture-proof cardboard boxes | |
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| NL1001844C2 | Method for manufacturing a liquid-tight box and a box obtained by the method. | |
| NL1000308C1 | Airtight dustproof box blank of foldable material | |
| AU2319395A | Blank, box and a method for making the box using the blank | |
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