| # | Country | Total Patents | |
|---|---|---|---|
| #1 | United States | 10 | |
| #2 | Canada | 1 |
| # | Industry | |
|---|---|---|
| #1 | Civil engineering | |
| #2 | Packaging and shipping | |
| #3 | Machines | |
| #4 | Mechanical elements | |
| #5 | Agriculture |
| # | Technology | |
|---|---|---|
| #1 | Dredging | |
| #2 | Crop agriculture | |
| #3 | Servomotors | |
| #4 | Unspecified technologies | |
| #5 | Winches |
| # | Name | Total Patents |
|---|---|---|
| #1 | Brodersen Max M | 6 |
| #2 | Stewart James S | 4 |
| #3 | Le Bleu Charles | 1 |
| Publication | Filing date | Title |
|---|---|---|
| US2352250A | Traction power operated winch | |
| US2368196A | Hauling scraper | |
| US2301516A | Traction power operated scraper | |
| US2220472A | Heavy duty scraper | |
| US2220473A | Heavy duty scraper | |
| US2052182A | Scraper | |
| US1983783A | Earth moving scraper | |
| US1967379A | Trailbuilder bowl for wheeled vehicles | |
| US1974520A | Elevating and equalizing mechanism for wheeled vehicles | |
| US1932608A | Earth moving device | |
| CA434915A | Hauling scraper |