| # | Country | Total Patents | |
|---|---|---|---|
| #1 | United Kingdom | 7 | |
| #2 | United States | 4 | |
| #3 | WIPO (World Intellectual Property Organization) | 2 |
| # | Industry | |
|---|---|---|
| #1 | Electrical machinery and energy | |
| #2 | Optics | |
| #3 | Machines | |
| #4 | Measurement | |
| #5 | Mechanical elements |
| # | Technology | |
|---|---|---|
| #1 | Installation of electric cables | |
| #2 | Optical systems | |
| #3 | Unspecified technologies | |
| #4 | Measuring volume | |
| #5 | Pipes |
| # | Name | Total Patents |
|---|---|---|
| #1 | Thomas Elfed | 7 |
| #2 | Mcbride James Archibald | 1 |
| Publication | Filing date | Title |
|---|---|---|
| GB0816616D0 | Laying network cables in water supply pipes | |
| GB0814665D0 | Laying network cables in sewers | |
| GB0806763D0 | Monitoring sewers | |
| WO2008009964A2 | Laying network cables in sewers | |
| GB0704893D0 | Laying network cables in sewers | |
| GB0614414D0 | Laying network cables in sewers | |
| GB0614412D0 | Laying network cables in sewers | |
| GB0614416D0 | Laying network cables in sewers |