| # | Country | Total Patents | |
|---|---|---|---|
| #1 | United States | 43 | |
| #2 | Canada | 6 |
| # | Industry | |
|---|---|---|
| #1 | Civil engineering | |
| #2 | Packaging and shipping | |
| #3 | Machines | |
| #4 | Transport | |
| #5 | Mechanical elements |
| # | Technology | |
|---|---|---|
| #1 | Dredging | |
| #2 | Construction of bridges | |
| #3 | Unspecified technologies | |
| #4 | Winches | |
| #5 | Motor vehicles | |
| #6 | Cranes | |
| #7 | Preparing clay | |
| #8 | Pipes | |
| #9 | Guiding railway traffic | |
| #10 | Transport or storage devices |
| # | Name | Total Patents |
|---|---|---|
| #1 | Page John W | 48 |
| #2 | Snedeker James W | 1 |
| Publication | Filing date | Title |
|---|---|---|
| US2393706A | Detachable bucket tooth | |
| US2311463A | Bucket tooth | |
| US2032851A | Excavating shovel | |
| US2003900A | Excavating apparatus | |
| US1989334A | Bucket | |
| US1879448A | Spreader | |
| US1879447A | Bucket lip | |
| US1868247A | Tooth point construction | |
| US1852671A | Bucket construction | |
| US1879446A | Self-propelled apparatus | |
| US1868246A | Bucket | |
| US1833587A | Excavating shovel | |
| US1850767A | Spreader | |
| US1836867A | Connecter | |
| US1802063A | Excavating apparatus | |
| US1724104A | Excavating apparatus | |
| US1747130A | Excavating device | |
| US1664940A | Excavating shovel | |
| US1580673A | Excavating shovel | |
| US1627249A | Revolving derrick |