| # | Country | Total Patents | |
|---|---|---|---|
| #1 | Australia | 1 | |
| #2 | Belgium | 1 | |
| #3 | Canada | 1 | |
| #4 | Germany | 1 | |
| #5 | Denmark | 1 | |
| #6 | France | 1 | |
| #7 | United Kingdom | 1 | |
| #8 | Italy | 1 | |
| #9 | Japan | 1 | |
| #10 | Netherlands | 1 | |
| #11 | Sweden | 1 | |
| #12 | United States | 1 | |
| #13 | South Africa | 1 |
| # | Industry | |
|---|---|---|
| #1 | Packaging and shipping | |
| #2 | Civil engineering |
| # | Technology | |
|---|---|---|
| #1 | Cranes | |
| #2 | Construction of roads |
| # | Name | Total Patents |
|---|---|---|
| #1 | Hofman Hendrik | 10 |
| #2 | Hofman H | 1 |
| Publication | Filing date | Title |
|---|---|---|
| NL8300230A | Paving method and graper for use in this method. |