| # | Country | Total Patents | |
|---|---|---|---|
| #1 | United States | 11 | |
| #2 | Canada | 2 |
| # | Industry | |
|---|---|---|
| #1 | Mechanical elements | |
| #2 | Agriculture | |
| #3 | Machine tools | |
| #4 | Measurement |
| # | Technology | |
|---|---|---|
| #1 | Clutches and brakes | |
| #2 | Harvesting | |
| #3 | Wood saws | |
| #4 | Testing of structures | |
| #5 | Gearing | |
| #6 | Crop agriculture |
| # | Name | Total Patents |
|---|---|---|
| #1 | Brownlee Robert L | 13 |
| #2 | Swanson Norman F | 1 |
| Publication | Filing date | Title |
|---|---|---|
| US3008282A | Riding supports for mowers and the like | |
| US2936613A | Engine testing machines | |
| US2669827A | Cutting unit for power weed cutters | |
| US2635649A | Timber saw | |
| US2353873A | Timber saw | |
| US2344593A | Clutch drive | |
| US2344592A | Power take-off clutch | |
| US2263349A | Power clutch | |
| US2260770A | Clutch | |
| US2135384A | Friction clutch | |
| US2097559A | Clutch pulley | |
| CA431564A | Timber saw | |
| CA527074A | Cutting units for power weed cutters |