| # | Country | Total Patents | |
|---|---|---|---|
| #1 | Germany | 28 |
| # | Industry | |
|---|---|---|
| #1 | Packaging and shipping | |
| #2 | Electrical machinery and energy | |
| #3 | Machine tools |
| # | Technology | |
|---|---|---|
| #1 | Elevators and escalators | |
| #2 | Dynamo-electric machines | |
| #3 | Cranes | |
| #4 | Electric switches | |
| #5 | Accessories for machine tools | |
| #6 | Electric motor controls | |
| #7 | Punching metal | |
| #8 | Rolling metal |
| # | Name | Total Patents |
|---|---|---|
| #1 | Herker Curt | 6 |
| #2 | Pittrohf Hans | 5 |
| #3 | Herker Kurt | 3 |
| #4 | Weissflog Herbert | 2 |
| #5 | Duerr Karl Ludwig | 2 |
| #6 | Schmude Hans V | 1 |
| #7 | Meyer Otto | 1 |
| #8 | Herbst Kurt | 1 |
| #9 | Duerr Karl-Ludwig | 1 |
| #10 | Heinschke Rudolf | 1 |