| # | Country | Total Patents | |
|---|---|---|---|
| #1 | Germany | 4 | |
| #2 | United Kingdom | 2 | |
| #3 | Belgium | 1 | |
| #4 | Canada | 1 | |
| #5 | Spain | 1 | |
| #6 | France | 1 | |
| #7 | Italy | 1 | |
| #8 | Norway | 1 | |
| #9 | Sweden | 1 | |
| #10 | United States | 1 |
| # | Industry | |
|---|---|---|
| #1 | Packaging and shipping |
| # | Technology | |
|---|---|---|
| #1 | Cranes | |
| #2 | Lifting and pushing |
| # | Name | Total Patents |
|---|---|---|
| #1 | Kirsten Erhard | 8 |
| Publication | Filing date | Title |
|---|---|---|
| DE2400310A1 | TILTING MOMENT CONTROL FOR A HYDRAULIC TELESCOPIC JIB CRANE | |
| GB1014755A | Improvements in and relating to truck cranes | |
| GB863733A | Improvements in or relating to cranes |