| # | Country | Total Patents | |
|---|---|---|---|
| #1 | United States | 29 |
| # | Industry | |
|---|---|---|
| #1 | Civil engineering | |
| #2 | Transport | |
| #3 | Machines | |
| #4 | Engines, pumps and turbines | |
| #5 | Mechanical elements |
| # | Technology | |
|---|---|---|
| #1 | Dredging | |
| #2 | Motor vehicles | |
| #3 | Street cleaning | |
| #4 | Vehicle suspension arrangements | |
| #5 | Servomotors | |
| #6 | Unspecified technologies | |
| #7 | Foundations and excavations | |
| #8 | Unspecified technologies | |
| #9 | Rotary-pistons |
| # | Name | Total Patents |
|---|---|---|
| #1 | Austin Ellsworth W | 22 |
| #2 | Choate Roy E | 3 |
| #3 | Hyler Loiell L | 2 |
| #4 | Greer Edward R | 2 |
| #5 | Pearson Herbert H | 1 |
| #6 | Barrett Wendell D | 1 |
| #7 | Rodler Waldo E | 1 |
| #8 | Rockwell Harvey W | 1 |
| #9 | Jirsa Emil F | 1 |
| Publication | Filing date | Title |
|---|---|---|
| US2444612A | Earth mover | |
| US2565499A | Earth mover | |
| US2426426A | Push plate mounting for earth movers | |
| US2429506A | Articulated push frame for earth movers | |
| US2396407A | Pusher arm rear-end mounting for earth movers | |
| US2332686A | Earth mover | |
| US2347882A | Excavator | |
| US2272540A | Excavator | |
| US2334374A | Implement support for vehicles | |
| US2329448A | Excavator | |
| US2198147A | Earth moving device | |
| US2273010A | Earth mover | |
| US2203713A | Earth mover | |
| US2123925A | Snow moving device | |
| US2137321A | Snow moving device | |
| US2204033A | Earth mover | |
| US2159347A | Tamping means | |
| US2162993A | Earth moving device | |
| US2149949A | Wagon | |
| US2101666A | Snow moving device |