| # | Country | Total Patents | |
|---|---|---|---|
| #1 | Germany | 24 | |
| #2 | Switzerland | 6 | |
| #3 | United Kingdom | 2 | |
| #4 | Netherlands | 2 | |
| #5 | Austria | 1 | |
| #6 | EPO (European Patent Office) | 1 | |
| #7 | France | 1 | |
| #8 | United States | 1 |
| # | Industry | |
|---|---|---|
| #1 | Electrical machinery and energy | |
| #2 | Audio-visual technology | |
| #3 | Civil engineering | |
| #4 | Mechanical elements | |
| #5 | Furniture and games |
| # | Technology | |
|---|---|---|
| #1 | Electrically-conductive connections | |
| #2 | Advertising | |
| #3 | Platform constructions | |
| #4 | Domestic washing | |
| #5 | Nails |
| # | Name | Total Patents |
|---|---|---|
| #1 | Wieland Dr-Ing Friedrich | 20 |
| #2 | Dr Wieland Friedrich Ing | 5 |
| #3 | Wieland Friedrich | 4 |
| #4 | Friedrich Wieland Dr-Ing | 2 |
| #5 | Wieland Friedrich Dr-Ing | 1 |
| Publication | Filing date | Title |
|---|---|---|
| AT502932A1 | Noise wall | |
| NL170205B | Electrical terminal terminal, such as a tie clamp or terminal strip. | |
| GB1173879A | Electrical Connectors | |
| GB1140293A | Electrical connectors |