| # | Country | Total Patents | |
|---|---|---|---|
| #1 | Germany | 18 |
| # | Industry | |
|---|---|---|
| #1 | Packaging and shipping | |
| #2 | Civil engineering |
| # | Technology | |
|---|---|---|
| #1 | Transport or storage devices | |
| #2 | Safety devices | |
| #3 | Shafts | |
| #4 | Elevators and escalators |
| # | Name | Total Patents |
|---|---|---|
| #1 | Koster Eduard | 18 |
| #2 | Koster Dr-Ing Karlhugo | 4 |
| #3 | Brand Dipl-Ing Udo | 3 |
| Publication | Filing date | Title |
|---|---|---|
| DE1187190B | Fall and / or trickle stairs suitable as a bunker and for vertical downward conveyance of goods |