| # | Country | Total Patents | |
|---|---|---|---|
| #1 | United Kingdom | 5 | |
| #2 | Canada | 3 | |
| #3 | EPO (European Patent Office) | 3 | |
| #4 | United States | 3 | |
| #5 | South Africa | 2 | |
| #6 | Australia | 1 | |
| #7 | New Zealand | 1 | |
| #8 | WIPO (World Intellectual Property Organization) | 1 |
| # | Industry | |
|---|---|---|
| #1 | Civil engineering | |
| #2 | Environmental technology | |
| #3 | Thermal processes | |
| #4 | Surface technology and coating | |
| #5 | Engines, pumps and turbines |
| # | Name | Total Patents |
|---|---|---|
| #1 | Hart Peter | 10 |
| #2 | Hart Peter Leslie | 3 |
| #3 | Peter Hart | 1 |
| Publication | Filing date | Title |
|---|---|---|
| GB0516866D0 | A composite drainage membrane and a water detention system utilising such a membrane | |
| GB0502861D0 | A composite drainage membrane and a water detention system utilising such a membrane | |
| GB0418391D0 | A heat exchange structure | |
| GB0416187D0 | A heat exchange structure | |
| GB0406776D0 | Walkway/roadway structure | |
| NZ526311A | A reinforced permeable paving structure | |
| EP1095189A1 | Paving block |