| # | Country | Total Patents | |
|---|---|---|---|
| #1 | Germany | 18 | |
| #2 | France | 3 | |
| #3 | United States | 1 |
| # | Industry | |
|---|---|---|
| #1 | Packaging and shipping | |
| #2 | Engines, pumps and turbines | |
| #3 | Machines | |
| #4 | Civil engineering |
| # | Technology | |
|---|---|---|
| #1 | Cranes | |
| #2 | Rotary pistons | |
| #3 | Rotary-pistons | |
| #4 | Pumps | |
| #5 | Scaffolding | |
| #6 | Transport or storage devices | |
| #7 | Preparing clay |
| # | Name | Total Patents |
|---|---|---|
| #1 | Heigl Georg | 5 |
| #2 | Spatzeck Dipl-Ing Richard | 2 |
| #3 | Preussler Werner | 1 |
| #4 | Zerza Horst Ing Grad | 1 |
| #5 | Weiss Karlheinz | 1 |
| #6 | Spatzek Dipl-Ing Richard | 1 |
| #7 | Georg Heigl | 1 |
| Publication | Filing date | Title |
|---|---|---|
| DE2418563A1 | Tower crane crab overload protection equipment - allows two-or four-fall working and lowering when near tower | |
| DE1910373A1 | Shuttering device | |
| DE1262541B | Tower crane | |
| DE1271937B | Mobile tower crane | |
| DE1229892B | Ready-mixed concrete vehicle | |
| DE1180104B | Tower crane | |
| DE1158684B | Installation device for a foldable crane with a telescopic column | |
| DE1171132B | Tower crane with retractable boom and trolley guided on this |