| # | Country | Total Patents | |
|---|---|---|---|
| #1 | EPO (European Patent Office) | 3 | |
| #2 | WIPO (World Intellectual Property Organization) | 3 | |
| #3 | Australia | 2 | |
| #4 | Canada | 2 | |
| #5 | United States | 2 | |
| #6 | Hong Kong | 1 |
| # | Industry | |
|---|---|---|
| #1 | Civil engineering |
| # | Technology | |
|---|---|---|
| #1 | Shafts | |
| #2 | Foundations and excavations | |
| #3 | Construction of roads |
| # | Name | Total Patents |
|---|---|---|
| #1 | Thomson James Crawford | 13 |
| Publication | Filing date | Title |
|---|---|---|
| AU2015370660A1 | Method and apparatus for forming tunnels for transport routes | |
| EP2948629A2 | Method and apparatus for forming tunnels and tunnels formed thereby | |
| AU9357998A | Arched support structure |