| # | Country | Total Patents | |
|---|---|---|---|
| #1 | Australia | 2 | |
| #2 | United Kingdom | 2 | |
| #3 | WIPO (World Intellectual Property Organization) | 2 | |
| #4 | Canada | 1 | |
| #5 | China | 1 | |
| #6 | EPO (European Patent Office) | 1 | |
| #7 | Finland | 1 | |
| #8 | Mexico | 1 | |
| #9 | Norway | 1 | |
| #10 | Poland | 1 | |
| #11 | United States | 1 | |
| #12 | South Africa | 1 |
| # | Industry | |
|---|---|---|
| #1 | Civil engineering |
| # | Technology | |
|---|---|---|
| #1 | Construction of roads |
| # | Name | Total Patents |
|---|---|---|
| #1 | Hodson Christopher Douglas | 13 |
| #2 | Hodson Douglas Basil | 7 |
| #3 | Hodson Douglas | 1 |
| #4 | Hodson C D Hodson D B | 1 |
| Publication | Filing date | Title |
|---|---|---|
| GB9521897D0 | Cruciform surfacing blocks | |
| GB9407485D0 | Improvements in and relating to surfacing blocks |