| # | Country | Total Patents | |
|---|---|---|---|
| #1 | United States | 39 | |
| #2 | Canada | 14 |
| # | Industry | |
|---|---|---|
| #1 | Packaging and shipping | |
| #2 | Civil engineering | |
| #3 | Machines | |
| #4 | Mechanical elements | |
| #5 | Agriculture |
| # | Technology | |
|---|---|---|
| #1 | Cranes | |
| #2 | Dredging | |
| #3 | Earth drilling | |
| #4 | Winches | |
| #5 | Belts or cables for driving | |
| #6 | Unspecified technologies | |
| #7 | Harvesting | |
| #8 | Handling thin material | |
| #9 | Unspecified technologies | |
| #10 | Shafts |
| # | Name | Total Patents |
|---|---|---|
| #1 | Atkinson Herbert S | 24 |
| #2 | Brendlin Herman J | 11 |
| #3 | Morris Charles A | 10 |
| #4 | Armstrong Philip M | 3 |
| #5 | Hayward John H | 3 |
| #6 | Morris Clara R | 2 |
| #7 | Judson Hayward | 2 |
| #8 | Marrder Charles A | 1 |
| #9 | Atkinson Robert S | 1 |
| #10 | Reynolds Henry L | 1 |
| Publication | Filing date | Title |
|---|---|---|
| US2188672A | Grab bucket | |
| US1951909A | Excavating shovel | |
| US1909520A | Bucket or grapple | |
| US1870288A | Excavating bucket | |
| US1826920A | Excavating shovel | |
| US1917492A | Excavating shovel | |
| US1772624A | Bucket | |
| US1766053A | Excavating shovel | |
| US1762946A | Bucket or grapple | |
| US1688324A | Bucket | |
| US1692195A | Bucket | |
| US1579624A | Bucket | |
| US1481336A | Bucket | |
| CA191470A | Bucket | |
| CA172251A | Bucket | |
| US1371291A | Bucket | |
| US1218826A | Bucket. | |
| US1238801A | Excavating system. | |
| US1171393A | Excavating apparatus. | |
| US1249298A | Bucket. |