| # | Country | Total Patents | |
|---|---|---|---|
| #1 | EPO (European Patent Office) | 5 | |
| #2 | Australia | 2 | |
| #3 | Canada | 2 | |
| #4 | United States | 1 | |
| #5 | WIPO (World Intellectual Property Organization) | 1 |
| # | Industry | |
|---|---|---|
| #1 | Civil engineering | |
| #2 | Furniture and games |
| # | Technology | |
|---|---|---|
| #1 | Street cleaning | |
| #2 | Domestic washing |
| # | Name | Total Patents |
|---|---|---|
| #1 | Duncan Ian James | 8 |
| #2 | Parr Richard Harold Glyn | 3 |
| #3 | Duncan Ian J | 3 |
| #4 | Parr Richard H G | 1 |
| Publication | Filing date | Title |
|---|---|---|
| EP0315669A1 | Cleaning vehicles. | |
| EP0269632A1 | Cleaning vehicles. |