| # | Country | Total Patents | |
|---|---|---|---|
| #1 | United States | 17 | |
| #2 | Canada | 2 |
| # | Industry | |
|---|---|---|
| #1 | Mechanical elements | |
| #2 | Machines | |
| #3 | Furniture and games | |
| #4 | Agriculture | |
| #5 | Electrical machinery and energy |
| # | Technology | |
|---|---|---|
| #1 | Pistons and sealings | |
| #2 | Clutches and brakes | |
| #3 | Gearing | |
| #4 | Unspecified technologies | |
| #5 | Kitchen equipment | |
| #6 | Electric switches | |
| #7 | Nails | |
| #8 | Agricultural harvest processing | |
| #9 | Harvesting | |
| #10 | Unspecified technologies |
| # | Name | Total Patents |
|---|---|---|
| #1 | Winger Stover C | 8 |
| #2 | Fred Ernst | 4 |
| #3 | Loehr Leslie K | 4 |
| #4 | Fred Ernest | 2 |
| #5 | Fleming Robert G | 2 |
| #6 | Graham Fleming Robert | 1 |
| #7 | Hoopes Ernest A | 1 |
| #8 | Moore Walter J | 1 |
| Publication | Filing date | Title |
|---|---|---|
| US2719767A | Piston ring structure | |
| US2600745A | Piston ring | |
| US2558426A | Piston ring | |
| US2602010A | Piston ring | |
| US2551878A | Piston ring | |
| US2295181A | Clutch mechanism | |
| US2255671A | Power transmitting mechanism | |
| US2400109A | Piston ring | |
| US2209497A | Variable ratio transmission | |
| US2272495A | Power transmitting system | |
| US2134807A | Spatula | |
| US2064136A | Household utensil | |
| US2223711A | Variable speed mechanism | |
| US2035582A | Variable ratio transmission device | |
| US2024362A | Spring switch | |
| US1814305A | Thrashing machine | |
| US1927281A | Harvester | |
| CA386905A | Spatula | |
| CA315768A | Threshing machine |