| # | Country | Total Patents | |
|---|---|---|---|
| #1 | Germany | 6 | |
| #2 | Switzerland | 4 | |
| #3 | Belgium | 3 | |
| #4 | Austria | 2 | |
| #5 | Denmark | 2 |
| # | Industry | |
|---|---|---|
| #1 | Packaging and shipping | |
| #2 | Transport | |
| #3 | Consumer goods | |
| #4 | Civil engineering |
| # | Technology | |
|---|---|---|
| #1 | Containers for goods storage | |
| #2 | Doors and windows | |
| #3 | Ice-boxes | |
| #4 | Load transportation vehicles | |
| #5 | Handling thin material |
| # | Name | Total Patents |
|---|---|---|
| #1 | Dahmen Karl | 9 |
| #2 | Karl Dahmen | 4 |
| Publication | Filing date | Title |
|---|---|---|
| DE3040458A1 | Truck with extendable parallel rails - has spaced depressions for rollers securable to heavy load to facilitate its transfer to ramp | |
| DE1411554B1 | Bag-like, lockable container |