| # | Country | Total Patents | |
|---|---|---|---|
| #1 | Germany | 15 | |
| #2 | Switzerland | 1 | |
| #3 | France | 1 | |
| #4 | United States | 1 |
| # | Industry | |
|---|---|---|
| #1 | Electrical machinery and energy | |
| #2 | Mechanical elements | |
| #3 | Audio-visual technology | |
| #4 | Consumer goods |
| # | Technology | |
|---|---|---|
| #1 | Lighting device details | |
| #2 | Nails | |
| #3 | Special light sources | |
| #4 | Advertising | |
| #5 | Belts or cables for driving | |
| #6 | Electrically-conductive connections | |
| #7 | Electric switches | |
| #8 | Laundering textiles |
| # | Name | Total Patents |
|---|---|---|
| #1 | Horst Helmholz | 1 |
| #2 | Helmholz Horst Dipl Ing | 1 |
| Publication | Filing date | Title |
|---|---|---|
| US3135472A | Lighting unit | |
| DE1129908B | Anti-glare louvre for lights |