| # | Country | Total Patents | |
|---|---|---|---|
| #1 | United States | 12 |
| # | Industry | |
|---|---|---|
| #1 | Transport | |
| #2 | Mechanical elements | |
| #3 | Agriculture |
| # | Technology | |
|---|---|---|
| #1 | Load transportation vehicles | |
| #2 | Vehicle connections | |
| #3 | Motor vehicles | |
| #4 | Harvesting | |
| #5 | Clutches and brakes |
| # | Name | Total Patents |
|---|---|---|
| #1 | Avery Courtney C | 8 |
| #2 | Underhill Walter A | 5 |
| #3 | Sherwood William E | 2 |
| #4 | Humphrey Alonzo L | 1 |
| Publication | Filing date | Title |
|---|---|---|
| US1702092A | Side-dump vehicle | |
| US1739376A | Rear-end dump box for vehicles | |
| US1587074A | Trailer attachment | |
| US1654032A | Dumping apparatus | |
| US1531682A | Hoisting mechanism for dump vehicles | |
| US1336665A | Wagon-train | |
| US1150466A | Vehicle train-coupling. | |
| US1241786A | Steering mechanism for wagon-trains. | |
| US1274109A | Steering mechanism for wagon-trains. | |
| US1116533A | Wagon-train coupling. | |
| US1136851A | Brake for wagons. | |
| US840601A | Dump-wagon. |