| # | Country | Total Patents | |
|---|---|---|---|
| #1 | United Kingdom | 3 | |
| #2 | Australia | 2 | |
| #3 | Canada | 2 | |
| #4 | Italy | 2 | |
| #5 | Austria | 1 | |
| #6 | Switzerland | 1 | |
| #7 | Germany | 1 | |
| #8 | Sweden | 1 | |
| #9 | USSR (Union of Socialist Soviet Republics) | 1 | |
| #10 | United States | 1 |
| # | Industry | |
|---|---|---|
| #1 | Mechanical elements | |
| #2 | Machines | |
| #3 | Civil engineering |
| # | Technology | |
|---|---|---|
| #1 | Venting or aerating devices | |
| #2 | Unspecified technologies | |
| #3 | Water-closets with flushing devices |
| # | Name | Total Patents |
|---|---|---|
| #1 | Nielsen Ove Hjortborg | 4 |
| #2 | Nielsen Ove H | 2 |
| #3 | Paul Bidyut Baran | 1 |
| #4 | Brix D | 1 |
| #5 | Nielsen Ove Khertborg | 1 |
| Publication | Filing date | Title |
|---|---|---|
| AU2611777A | A regulation valve | |
| CA1022432A | Regulation valve, particularly a mixing valve | |
| GB1462374A | Valve structures | |
| GB1462373A | Regulation valves particularly mixing valves | |
| GB1271878A | Improvements in and relating to cisterns, in particular for water closets |