| # | Country | Total Patents | |
|---|---|---|---|
| #1 | United Kingdom | 2 | |
| #2 | Canada | 1 | |
| #3 | Switzerland | 1 | |
| #4 | Germany | 1 | |
| #5 | Denmark | 1 | |
| #6 | France | 1 | |
| #7 | Israel | 1 | |
| #8 | Norway | 1 | |
| #9 | Sweden | 1 | |
| #10 | United States | 1 |
| # | Industry | |
|---|---|---|
| #1 | Civil engineering | |
| #2 | Machines | |
| #3 | Mechanical elements |
| # | Technology | |
|---|---|---|
| #1 | Sewers | |
| #2 | Domestic plumbing installations | |
| #3 | Unspecified technologies | |
| #4 | Hydraulic engineering | |
| #5 | Pipes |
| # | Name | Total Patents |
|---|---|---|
| #1 | Scarfe P | 3 |
| #2 | Scarfe Peter Noel Henry | 2 |
| #3 | Noel Henry Scarfe Peter | 1 |
| #4 | Henry Scarfe Peter Noel | 1 |
| #5 | Scarfe Peter N H | 1 |
| #6 | Iliffe Richard | 1 |
| Publication | Filing date | Title |
|---|---|---|
| GB1269351A | Improvements in or relating to soil or surface drainage | |
| GB1197233A | Drainage Systems for the Disposal of Soil and Surface Water | |
| IL26211A | Soil and surface water drainage in buildings | |
| DE1609137B1 | Surface or sewage collection shaft | |
| CA820098A | Soil and surface water drainage in buildings |