| # | Country | Total Patents | |
|---|---|---|---|
| #1 | Netherlands | 3 | |
| #2 | Belgium | 2 | |
| #3 | Canada | 2 | |
| #4 | Denmark | 2 | |
| #5 | EPO (European Patent Office) | 2 | |
| #6 | France | 2 | |
| #7 | United Kingdom | 2 | |
| #8 | Greece | 2 | |
| #9 | Italy | 2 | |
| #10 | South Africa | 2 | |
| #11 | Austria | 1 | |
| #12 | Switzerland | 1 | |
| #13 | German Democratic Republic | 1 | |
| #14 | Finland | 1 | |
| #15 | Hungary | 1 | |
| #16 | India | 1 | |
| #17 | Norway | 1 |
| # | Industry | |
|---|---|---|
| #1 | Control | |
| #2 | Transport | |
| #3 | Consumer goods | |
| #4 | Packaging and shipping |
| # | Technology | |
|---|---|---|
| #1 | Alarm systems | |
| #2 | Vehicle drive control systems | |
| #3 | Buttons, pins and buckles | |
| #4 | Containers for goods storage | |
| #5 | Protective garments |
| # | Name | Total Patents |
|---|---|---|
| #1 | Valkenburg Arie | 21 |
| #2 | Valkenburg Aria | 1 |
| Publication | Filing date | Title |
|---|---|---|
| EP0129920A1 | Light reflecting safety belt | |
| NL8300317A | Velcro packaging. | |
| NL8300318A | Light-reflecting safety arm band - is worn by pedestrians, cyclists, etc. at night |