| # | Country | Total Patents | |
|---|---|---|---|
| #1 | Germany | 24 |
| # | Industry | |
|---|---|---|
| #1 | Agriculture | |
| #2 | Transport |
| # | Technology | |
|---|---|---|
| #1 | Agricultural harvest processing | |
| #2 | Planting | |
| #3 | Harvesting | |
| #4 | Cycle stands | |
| #5 | Motor vehicles |
| # | Name | Total Patents |
|---|---|---|
| #1 | Petersen Erich | 12 |
| #2 | Petersen Dipl-Ing Erich | 4 |
| #3 | Petersen Erich Dipl-Ing | 3 |
| #4 | Bergmann Gregor | 3 |
| #5 | Bergmann Franz | 1 |
| #6 | Betersen Erich | 1 |