| # | Country | Total Patents | |
|---|---|---|---|
| #1 | Germany | 2 | |
| #2 | Spain | 2 | |
| #3 | Austria | 1 | |
| #4 | Australia | 1 | |
| #5 | Brazil | 1 | |
| #6 | Canada | 1 | |
| #7 | Switzerland | 1 | |
| #8 | Czechoslovakia | 1 | |
| #9 | German Democratic Republic | 1 | |
| #10 | Denmark | 1 | |
| #11 | Finland | 1 | |
| #12 | France | 1 | |
| #13 | United Kingdom | 1 | |
| #14 | Greece | 1 | |
| #15 | Hungary | 1 | |
| #16 | Ireland | 1 | |
| #17 | Israel | 1 | |
| #18 | India | 1 | |
| #19 | Italy | 1 | |
| #20 | Japan | 1 | |
| #21 | Mexico | 1 | |
| #22 | Netherlands | 1 | |
| #23 | Norway | 1 | |
| #24 | New Zealand | 1 | |
| #25 | Portugal | 1 | |
| #26 | Sweden | 1 | |
| #27 | USSR (Union of Socialist Soviet Republics) | 1 | |
| #28 | South Africa | 1 |
| # | Industry | |
|---|---|---|
| #1 | Environmental technology | |
| #2 | Thermal processes | |
| #3 | Control |
| # | Name | Total Patents |
|---|---|---|
| #1 | Van Der Meulen Theo | 5 |
| #2 | Meulen Theo Van Der | 4 |
| #3 | Meulen T | 3 |
| #4 | Mojlen Teo Van Der | 1 |
| #5 | Van Der Meulen T | 1 |
| #6 | Meulen T Van Der | 1 |
| #7 | Meulen Van Der Theo | 1 |
| #8 | Theo Van Der Meulen | 1 |
| #9 | Teo Fuan Deru Moiren | 1 |
| Publication | Filing date | Title |
|---|---|---|
| ES449549A1 | Method and apparatus for controlling a heat transfer installation | |
| DE2625405A1 | Control of hot water central heating system - is operated by temp. difference between flow and return | |
| DE2529858A1 | Control of hot water central heating system - is operated by temp. difference between flow and return |