| # | Country | Total Patents | |
|---|---|---|---|
| #1 | Germany | 45 | |
| #2 | Switzerland | 3 |
| # | Industry | |
|---|---|---|
| #1 | Electrical machinery and energy | |
| #2 | Environmental technology | |
| #3 | Mechanical elements | |
| #4 | Civil engineering |
| # | Technology | |
|---|---|---|
| #1 | Electric switches | |
| #2 | Electrically-conductive connections | |
| #3 | Cables and insulators | |
| #4 | Installation of electric cables | |
| #5 | Hydraulic engineering | |
| #6 | Nails | |
| #7 | Water treatment | |
| #8 | Lighting device details |
| # | Name | Total Patents |
|---|---|---|
| #1 | Schrank Erwin | 4 |
| #2 | Badewitz Max | 2 |
| #3 | Lindner Co | 2 |
| #4 | Alfred Leuenberger | 1 |
| #5 | Ludwig Gerhard | 1 |
| #6 | Haubold Max | 1 |