| # | Country | Total Patents | |
|---|---|---|---|
| #1 | Germany | 16 | |
| #2 | United Kingdom | 2 | |
| #3 | United States | 1 |
| # | Industry | |
|---|---|---|
| #1 | Weapons | |
| #2 | Consumer goods | |
| #3 | Agriculture | |
| #4 | Mechanical elements | |
| #5 | Transport |
| # | Technology | |
|---|---|---|
| #1 | Targets | |
| #2 | Animal care | |
| #3 | Ropes | |
| #4 | Harnesses | |
| #5 | Vehicle servicing | |
| #6 | Belts or cables for driving |
| # | Name | Total Patents |
|---|---|---|
| #1 | Johannsen Hans | 6 |
| #2 | Johannsen Dipl-Ing Solvej | 4 |
| #3 | Hans Johannsen | 1 |
| Publication | Filing date | Title |
|---|---|---|
| DE1035526B | Device on horizontally running target systems | |
| DE1035527B | Self-indicating target | |
| DE1035528B | Self-indicating mechanical target | |
| DE944176C | Self-indicating target | |
| US1853979A | Automatic target | |
| GB221363A | Improvements in rope fasteners |