| # | Country | Total Patents | |
|---|---|---|---|
| #1 | Australia | 1 | |
| #2 | Belgium | 1 | |
| #3 | Brazil | 1 | |
| #4 | Canada | 1 | |
| #5 | Switzerland | 1 | |
| #6 | German Democratic Republic | 1 | |
| #7 | Germany | 1 | |
| #8 | Spain | 1 | |
| #9 | France | 1 | |
| #10 | United Kingdom | 1 | |
| #11 | Israel | 1 | |
| #12 | Italy | 1 | |
| #13 | Japan | 1 | |
| #14 | Luxembourg | 1 | |
| #15 | Netherlands | 1 | |
| #16 | New Zealand | 1 | |
| #17 | Poland | 1 | |
| #18 | United States | 1 | |
| #19 | South Africa | 1 |
| # | Industry | |
|---|---|---|
| #1 | Machines | |
| #2 | Machine tools | |
| #3 | Basic materials chemistry |
| # | Technology | |
|---|---|---|
| #1 | Treating wood | |
| #2 | Unspecified technologies | |
| #3 | Unspecified technologies | |
| #4 | Preservation of human bodies |
| # | Name | Total Patents |
|---|---|---|
| #1 | Keulen Jacobus M Van | 3 |
| #2 | Keulen Jacobus Marinus Van | 3 |
| #3 | Blom Cornelis Willem | 3 |
| #4 | Blom C | 3 |
| #5 | Blom Cornelis W | 3 |
| #6 | Keulen J | 3 |
| #7 | Blom C W | 2 |
| #8 | Keulen J M Van | 2 |
| Publication | Filing date | Title |
|---|---|---|
| NL7906886A | Wood preservation with biocide-releasing compsns. - contg. polar organic solvent and/or biocide precursor |