| # | Country | Total Patents | |
|---|---|---|---|
| #1 | United Kingdom | 5 | |
| #2 | EPO (European Patent Office) | 4 | |
| #3 | WIPO (World Intellectual Property Organization) | 4 | |
| #4 | United States | 3 | |
| #5 | China | 2 | |
| #6 | Philippines | 2 | |
| #7 | Singapore | 2 | |
| #8 | Australia | 1 | |
| #9 | Canada | 1 | |
| #10 | Hong Kong | 1 |
| # | Industry | |
|---|---|---|
| #1 | Civil engineering |
| # | Technology | |
|---|---|---|
| #1 | Foundations and excavations | |
| #2 | Dredging | |
| #3 | Structural elements |
| # | Name | Total Patents |
|---|---|---|
| #1 | Coupland John | 18 |
| #2 | John Coupland | 3 |
| #3 | John William Coupland | 2 |
| #4 | Coupland John William | 1 |
| Publication | Filing date | Title |
|---|---|---|
| GB201802477D0 | Shear key former apparatus and method(s) | |
| GB2568092A | Improved cutting assembly | |
| GB201715781D0 | Spacers | |
| GB201706643D0 | Diaphragm walls | |
| EP2732101A2 | Diaphragm wall apparatus and methods |