| # | Country | Total Patents | |
|---|---|---|---|
| #1 | Germany | 7 | |
| #2 | EPO (European Patent Office) | 5 | |
| #3 | Japan | 4 | |
| #4 | United States | 3 | |
| #5 | Australia | 2 | |
| #6 | Brazil | 1 | |
| #7 | Canada | 1 |
| # | Industry | |
|---|---|---|
| #1 | Transport | |
| #2 | Medical technology | |
| #3 | Packaging and shipping |
| # | Technology | |
|---|---|---|
| #1 | Hand carts | |
| #2 | Operating tables | |
| #3 | Vehicle transmission mounting | |
| #4 | Elevators and escalators |
| # | Name | Total Patents |
|---|---|---|
| #1 | Alber Ulrich | 20 |
| #2 | Alber Markus | 3 |
| Publication | Filing date | Title |
|---|---|---|
| DE10232800A1 | Handle device for a stair climbing device | |
| DE10214878A1 | golf carts | |
| DE10010775C1 | Goods trolley has electrically-driven stair climbing device with electric motor coupled to crank shaft with 2 halves each driving 2 crank arms for stair climbing device and driven wheel of trolley | |
| DE19745153A1 | Transport device | |
| DE19614319A1 | Transport device | |
| DE19519109A1 | Transport barrow with frame mounted running wheels, and step climbing device | |
| DE4429149A1 | Stairway transport device |