| # | Country | Total Patents | |
|---|---|---|---|
| #1 | United States | 15 |
| # | Industry | |
|---|---|---|
| #1 | Civil engineering | |
| #2 | Machines | |
| #3 | Packaging and shipping | |
| #4 | Transport |
| # | Technology | |
|---|---|---|
| #1 | Dredging | |
| #2 | Unspecified technologies | |
| #3 | Motor vehicles | |
| #4 | Cranes | |
| #5 | Street cleaning | |
| #6 | Winches | |
| #7 | Unspecified technologies |
| # | Name | Total Patents |
|---|---|---|
| #1 | Lotte Charles H | 5 |
| #2 | Ferguson Berlin S | 5 |
| #3 | Shaffer Layton S | 2 |
| #4 | Teager Stephen R | 2 |
| #5 | Beckwith Henry C | 1 |
| Publication | Filing date | Title |
|---|---|---|
| US2519311A | Fluid pressure operated trip actuating mechanism | |
| US2414146A | Material handling machine | |
| US2357462A | Boom hoist | |
| US2309759A | Line control mechanism | |
| US2326935A | Crowd and retract mechanism | |
| US2268519A | Accumulator | |
| US2300280A | Apparatus for sweeping | |
| US1886032A | Excavating machine | |
| US1874558A | Trailer | |
| US1952267A | Clutch operating mechanism for tractors | |
| US1889590A | Excavating machine | |
| US1837341A | Digging tooth | |
| US1871539A | Excavating machine | |
| US1761267A | Power steering machine | |
| US1696174A | Portable crane |