| # | Country | Total Patents | |
|---|---|---|---|
| #1 | United States | 11 |
| # | Industry | |
|---|---|---|
| #1 | Transport | |
| #2 | Civil engineering |
| # | Technology | |
|---|---|---|
| #1 | Motor vehicles | |
| #2 | Street cleaning | |
| #3 | Load transportation vehicles | |
| #4 | Vehicle connections | |
| #5 | Dredging |
| # | Name | Total Patents |
|---|---|---|
| #1 | Greer Edward R | 11 |
| #2 | Carson Emmett L | 1 |
| Publication | Filing date | Title |
|---|---|---|
| US2474840A | Apparatus for removing snow and the like | |
| US2404287A | Apparatus for removing snow and the like | |
| US2187970A | Trailer hitch | |
| US1927891A | Tractor hitch | |
| US1965374A | Scraper | |
| US1990731A | Trailer hitch | |
| US1916928A | Dump wagon | |
| US1877126A | Tractor hitch | |
| US1761723A | Sprinkling apparatus | |
| US1799846A | Tractor hitch | |
| US1704430A | Power dumping mechanism |