| # | Country | Total Patents | |
|---|---|---|---|
| #1 | United Kingdom | 7 | |
| #2 | WIPO (World Intellectual Property Organization) | 3 | |
| #3 | EPO (European Patent Office) | 2 | |
| #4 | Australia | 1 |
| # | Industry | |
|---|---|---|
| #1 | Civil engineering | |
| #2 | Mechanical elements |
| # | Technology | |
|---|---|---|
| #1 | Water-closets with flushing devices | |
| #2 | Venting or aerating devices | |
| #3 | Domestic plumbing installations |
| # | Name | Total Patents |
|---|---|---|
| #1 | Henson Dennis Raymond | 13 |
| Publication | Filing date | Title |
|---|---|---|
| WO2007141481A1 | Apparatus and method for modifying the operating characteristics of a liquid storage vessel | |
| EP2029923A1 | Float valve regulator | |
| GB0617469D0 | A float chamber within a cistern having a delayed action float controlled liquid inlet valve | |
| GB9820597D0 | Valve delay action buoyancy chamber | |
| GB9815987D0 | A ballcock valve assembly with a delayed action device | |
| GB9807430D0 | Rapid float | |
| GB9623373D0 | Ballcock valve regulator |