| # | Country | Total Patents | |
|---|---|---|---|
| #1 | United States | 15 | |
| #2 | Canada | 1 |
| # | Industry | |
|---|---|---|
| #1 | Civil engineering |
| # | Technology | |
|---|---|---|
| #1 | Dredging | |
| #2 | Street cleaning |
| # | Name | Total Patents |
|---|---|---|
| #1 | Dean George E | 12 |
| #2 | Nelson Ralph L | 1 |
| #3 | Rex Homan | 1 |
| #4 | Hirst Frank H | 1 |
| #5 | Trust Company Grand Rapids | 1 |
| #6 | Burns David E | 1 |
| Publication | Filing date | Title |
|---|---|---|
| US2251452A | Tilting road scraper | |
| US1876865A | Scraper blade mounting | |
| US1876867A | Spring grader and moldboard | |
| US1921221A | Hydraulic scraper | |
| US1844058A | Hydraulically operated road scraper | |
| US1841403A | Road grader | |
| US1906549A | Road grader | |
| US1876866A | Street sweeper | |
| US1850341A | Road scraper | |
| US1793066A | Hydraulic road scraper | |
| US1909854A | Hydraulic lift for scraper blades | |
| US1925306A | Road scraper | |
| US1719886A | Snowscraper | |
| US1660806A | Road scraper | |
| US1625019A | Road-scraper-adjusting mechanism | |
| CA337215A | Scraper blade mounting |