| # | Country | Total Patents | |
|---|---|---|---|
| #1 | Germany | 5 | |
| #2 | United States | 4 | |
| #3 | United Kingdom | 2 | |
| #4 | France | 1 |
| # | Industry | |
|---|---|---|
| #1 | Mechanical elements | |
| #2 | Agriculture |
| # | Technology | |
|---|---|---|
| #1 | Gearing | |
| #2 | Animal care |
| # | Name | Total Patents |
|---|---|---|
| #1 | Jakob Arter | 4 |
| #2 | Edmund Schelling | 1 |
| #3 | Arter Jakob | 1 |
| Publication | Filing date | Title |
|---|---|---|
| US2389589A | Friction wheel change speed gear | |
| GB476589A | Improvements in or relating to frictional change speed gears | |
| US1775479A | Friction gear | |
| US1718846A | Friction ball gearing | |
| US1629902A | Power-transmitting device | |
| GB238226A | Improvements in or relating to power transmitting devices |