| # | Country | Total Patents | |
|---|---|---|---|
| #1 | Germany | 14 |
| # | Industry | |
|---|---|---|
| #1 | Packaging and shipping | |
| #2 | Machines | |
| #3 | Civil engineering | |
| #4 | Machine tools |
| # | Technology | |
|---|---|---|
| #1 | Transport or storage devices | |
| #2 | Preparing clay | |
| #3 | Shaping clay | |
| #4 | General building constructions | |
| #5 | Cranes | |
| #6 | Scaffolding | |
| #7 | Elevators and escalators | |
| #8 | Structural elements | |
| #9 | Presses |
| # | Name | Total Patents |
|---|---|---|
| #1 | Boelkow Ludwig Dipl-Ing | 14 |
| #2 | Bauer Richard | 4 |
| #3 | Boerger Hans | 2 |
| #4 | Eckert Wilhelm Dipl-Ing | 1 |
| #5 | Pieckert Walther Dipl-Ing | 1 |