| # | Country | Total Patents | |
|---|---|---|---|
| #1 | United States | 3 | |
| #2 | Australia | 1 | |
| #3 | China | 1 | |
| #4 | EPO (European Patent Office) | 1 | |
| #5 | Hong Kong | 1 | |
| #6 | Malaysia | 1 | |
| #7 | Singapore | 1 | |
| #8 | Taiwan | 1 | |
| #9 | WIPO (World Intellectual Property Organization) | 1 |
| # | Industry | |
|---|---|---|
| #1 | Civil engineering | |
| #2 | Machines |
| # | Technology | |
|---|---|---|
| #1 | Foundations and excavations | |
| #2 | Unspecified technologies |
| # | Name | Total Patents |
|---|---|---|
| #1 | Evarts Kingsley S | 10 |
| Publication | Filing date | Title |
|---|---|---|
| SG50601A1 | Hydraulic control circuit fo pile driver | |
| US5474138A | Hydraulic control circuit for pile driver | |
| US5088565A | Vibratory pile driver |