| # | Country | Total Patents | |
|---|---|---|---|
| #1 | Netherlands | 4 | |
| #2 | WIPO (World Intellectual Property Organization) | 4 | |
| #3 | EPO (European Patent Office) | 3 | |
| #4 | Australia | 1 | |
| #5 | Denmark | 1 | |
| #6 | Finland | 1 | |
| #7 | United States | 1 |
| # | Industry | |
|---|---|---|
| #1 | Electrical machinery and energy |
| # | Technology | |
|---|---|---|
| #1 | Electrically-conductive connections | |
| #2 | Lighting device details | |
| #3 | Special light sources | |
| #4 | Non-portable lighting devices |
| # | Name | Total Patents |
|---|---|---|
| #1 | Kuiper Adrianus Maria | 10 |
| #2 | Kuiper Adrianus M | 1 |
| Publication | Filing date | Title |
|---|---|---|
| NL9201001A | Fastening construction for a ballast. | |
| NL8902616A | Lampholder system. | |
| NL8500414A | Lamp holder for gas discharge or fluorescent lamp with a single lamp base. | |
| NL8402000A | Lamp holder for loop, u or pi shaped gas discharge or fluorescent lamp with a single lamp base. |