| # | Country | Total Patents | |
|---|---|---|---|
| #1 | Germany | 6 | |
| #2 | Switzerland | 3 | |
| #3 | Austria | 2 | |
| #4 | France | 2 | |
| #5 | Spain | 1 |
| # | Industry | |
|---|---|---|
| #1 | Machine tools | |
| #2 | Agriculture | |
| #3 | Electrical machinery and energy | |
| #4 | Audio-visual technology | |
| #5 | Civil engineering |
| # | Technology | |
|---|---|---|
| #1 | Presses | |
| #2 | Treating harvested food | |
| #3 | Electric motor controls | |
| #4 | Swimming pools | |
| #5 | Advertising |
| # | Name | Total Patents |
|---|---|---|
| #1 | Gunkel Otto | 8 |
| #2 | Otto Gunkel | 3 |
| Publication | Filing date | Title |
|---|---|---|
| DE3810260A1 | Flag | |
| ES290197A1 | Press for fruits (Machine-translation by Google Translate, not legally binding) |