| # | Country | Total Patents | |
|---|---|---|---|
| #1 | Germany | 8 | |
| #2 | Switzerland | 2 | |
| #3 | France | 2 | |
| #4 | Netherlands | 2 | |
| #5 | Austria | 1 | |
| #6 | Canada | 1 | |
| #7 | Finland | 1 | |
| #8 | United Kingdom | 1 | |
| #9 | Norway | 1 | |
| #10 | United States | 1 |
| # | Industry | |
|---|---|---|
| #1 | Packaging and shipping | |
| #2 | Mechanical elements | |
| #3 | Measurement | |
| #4 | Transport |
| # | Technology | |
|---|---|---|
| #1 | Cranes | |
| #2 | Servomotors | |
| #3 | Electrical vehicle propulsion | |
| #4 | Safety devices | |
| #5 | Measuring force, work and fluid pressure |
| # | Name | Total Patents |
|---|---|---|
| #1 | Hohmann Walter | 8 |
| #2 | Hohmann W | 1 |
| #3 | Wilhelm Wolfgang | 1 |
| #4 | Wilhelm Wolfgang Ing Grad | 1 |
| Publication | Filing date | Title |
|---|---|---|
| DE2659755A1 | DEVICE FOR SENDING A SET POINT SIGNAL FOR A MONITORING DEVICE OF A JIB CRANE OR THE LIKE. | |
| DE2504455A1 | DEVICE FOR CONTROLLING A CRANE JIB DRIVE | |
| DE2504445B1 | DEVICE FOR MONITORING THE LOAD MOMENT OF AN ADJUSTABLE CRANE JIB | |
| DE2427552A1 | Hydraulic valve control mechanism - has electric motor driving screw mechanism coupled to valve control rod |