| # | Country | Total Patents | |
|---|---|---|---|
| #1 | Sweden | 13 | |
| #2 | United Kingdom | 12 | |
| #3 | United States | 10 | |
| #4 | Germany | 8 | |
| #5 | France | 8 | |
| #6 | Canada | 7 | |
| #7 | Switzerland | 7 | |
| #8 | Japan | 7 | |
| #9 | Belgium | 6 | |
| #10 | Italy | 6 | |
| #11 | Norway | 6 | |
| #12 | Finland | 5 | |
| #13 | Austria | 4 | |
| #14 | Australia | 4 | |
| #15 | Denmark | 3 | |
| #16 | Spain | 3 | |
| #17 | Netherlands | 3 | |
| #18 | South Africa | 2 |
| # | Industry | |
|---|---|---|
| #1 | Thermal processes | |
| #2 | Mechanical elements | |
| #3 | Machines | |
| #4 | Control | |
| #5 | Packaging and shipping |
| # | Name | Total Patents |
|---|---|---|
| #1 | Bjoerklund Curt Arnold | 22 |
| #2 | Bjorklund Curt Arnold | 14 |
| #3 | Bjorklund Curt A | 13 |
| #4 | Bjoerklund C | 4 |
| #5 | Kaato Aanorudo Biyorukurundo | 3 |
| #6 | Bjoerklund C A | 3 |
| #7 | Kuruto Aanorudo Buorukurundo | 2 |
| #8 | Bjorklund C A | 2 |
| #9 | Kuruto Aanorudo Biyorukurundo | 2 |
| #10 | Thomasson H | 1 |
| Publication | Filing date | Title |
|---|---|---|
| GB2044408A | Valve | |
| JPS55146318A | Valve | |
| CH640925A5 | Device for regulating the water temperature of a central heating system. | |
| DE2808962A1 | VALVE UNIT | |
| CH628411A5 | Burner nozzle with a device for the automatic ventilation of the oil pipes through the inside of the nozzle. | |
| ATA581777A | Valve | |
| DE2707680A1 | VALVE, IN PARTICULAR FOR INSTALLATION IN AN OIL LINE BETWEEN A PUMP AND A BURNER MOUTHPIECE | |
| CA1026286A | Valve | |
| FI753631A | Ventil | |
| US4062480A | Valve with draw back after closing | |
| US3987810A | Burner scavenging valve | |
| US3954222A | Water mixer | |
| GB1420358A | Valve | |
| GB1420357A | Valve | |
| CA1014914A | Valve | |
| CH560858A5 | Fuel delivery non-dribbling stop valve - sucks fluid back from outlet on closing | |
| US3886974A | Valve | |
| GB1391966A | Water mixer | |
| ZA7201852B | Valve | |
| AU3998772A | Valve |