| # | Country | Total Patents | |
|---|---|---|---|
| #1 | Netherlands | 3 | |
| #2 | Canada | 2 | |
| #3 | Germany | 2 | |
| #4 | Japan | 2 | |
| #5 | EPO (European Patent Office) | 1 | |
| #6 | Spain | 1 | |
| #7 | Italy | 1 | |
| #8 | United States | 1 |
| # | Industry | |
|---|---|---|
| #1 | Electrical machinery and energy | |
| #2 | Civil engineering |
| # | Technology | |
|---|---|---|
| #1 | General building constructions | |
| #2 | Non-portable lighting devices | |
| #3 | Lighting device details | |
| #4 | Special light sources |
| # | Name | Total Patents |
|---|---|---|
| #1 | Treffers Willem M | 3 |
| #2 | Treffers Willem Marinus | 3 |
| #3 | Uiremu Marinasu Torefuerusu | 2 |
| Publication | Filing date | Title |
|---|---|---|
| NL7907132A | House for a workplace equipment and profile for it. | |
| DE2737766A1 | LAMP HOUSING AND ASSOCIATED PROFILE PIECE | |
| CA1033139A | Building structure and coupling profile associated therewith |