| # | Country | Total Patents | |
|---|---|---|---|
| #1 | United States | 6 | |
| #2 | Canada | 4 | |
| #3 | EPO (European Patent Office) | 3 | |
| #4 | Germany | 2 | |
| #5 | United Kingdom | 2 | |
| #6 | Japan | 2 | |
| #7 | Sweden | 2 | |
| #8 | Australia | 1 | |
| #9 | Italy | 1 | |
| #10 | Mexico | 1 | |
| #11 | WIPO (World Intellectual Property Organization) | 1 |
| # | Industry | |
|---|---|---|
| #1 | Mechanical elements | |
| #2 | Agriculture | |
| #3 | Machine tools | |
| #4 | Engines, pumps and turbines | |
| #5 | Machines |
| # | Technology | |
|---|---|---|
| #1 | Clutches and brakes | |
| #2 | Harvesting | |
| #3 | Wood saws | |
| #4 | Internal-combustion piston engines | |
| #5 | Unspecified technologies | |
| #6 | Unspecified technologies |
| # | Name | Total Patents |
|---|---|---|
| #1 | Zindler Hugh A | 19 |
| #2 | Pollow Sheldon D | 2 |
| #3 | Hiyuu Ei Jindoraa | 2 |
| #4 | Zindler Hugh Alan | 1 |
| #5 | Shierudon Deii Poroo | 1 |
| Publication | Filing date | Title |
|---|---|---|
| AU4970696A | Centrifugal clutch | |
| US4282958A | Drive transmission | |
| US4290512A | Clutch and brake mechanism | |
| CA1153713A | Clutch and brake mechanism | |
| US4253556A | Clutch-brake mechanism | |
| US4226312A | Clutch and brake mechanism | |
| US4669590A | Brake released clutch mechanism | |
| US3971463A | Progressively engaged centrifugal clutch |