| # | Country | Total Patents | |
|---|---|---|---|
| #1 | Austria | 2 | |
| #2 | United Kingdom | 2 | |
| #3 | United States | 2 | |
| #4 | Australia | 1 | |
| #5 | Canada | 1 | |
| #6 | Germany | 1 | |
| #7 | France | 1 | |
| #8 | Italy | 1 | |
| #9 | Sweden | 1 | |
| #10 | South Africa | 1 |
| # | Industry | |
|---|---|---|
| #1 | Civil engineering |
| # | Technology | |
|---|---|---|
| #1 | Dredging |
| # | Name | Total Patents |
|---|---|---|
| #1 | Tarrant J | 3 |
| #2 | Tarrant John | 3 |
| #3 | Voyce T | 1 |
| Publication | Filing date | Title |
|---|---|---|
| GB1513755A | Excavators | |
| GB1315057A | Excavator buckets | |
| US3740875A | Dragline bucket with skid link |