| # | Country | Total Patents | |
|---|---|---|---|
| #1 | United States | 27 | |
| #2 | Canada | 11 | |
| #3 | Germany | 8 | |
| #4 | United Kingdom | 8 | |
| #5 | Italy | 8 | |
| #6 | Japan | 8 | |
| #7 | Spain | 5 | |
| #8 | Sweden | 4 | |
| #9 | Argentina | 2 | |
| #10 | EPO (European Patent Office) | 2 | |
| #11 | France | 2 | |
| #12 | Mexico | 2 | |
| #13 | WIPO (World Intellectual Property Organization) | 2 | |
| #14 | South Africa | 2 | |
| #15 | Brazil | 1 | |
| #16 | Netherlands | 1 |
| # | Industry | |
|---|---|---|
| #1 | Measurement | |
| #2 | Chemical engineering | |
| #3 | Mechanical elements | |
| #4 | Machines | |
| #5 | Macromolecular chemistry and polymers | |
| #6 | Thermal processes |
| # | Name | Total Patents |
|---|---|---|
| #1 | Rosaen Nils O | 60 |
| #2 | Nirusu Oo Roozain | 7 |
| #3 | Rosaen Nils Olav | 4 |
| #4 | Rosaen Oscar E | 1 |
| #5 | Nirusu Osukaa Toore Reefu | 1 |
| #6 | Nils Olav Rosaen | 1 |
| #7 | Rosaen Borje O | 1 |
| #8 | Rosaen Borje Oscar | 1 |
| #9 | Olav Rosaen Nils | 1 |
| Publication | Filing date | Title |
|---|---|---|
| US4928515A | Oil mist sensor | |
| US4622994A | Fluid handling device | |
| CA1226507A | Automatic shut off valve | |
| US4548235A | Fluid handling device | |
| ZA8406328B | Fluid handling device | |
| US4535797A | Automatic shut off valve | |
| JPS5835418A | Flowmeter | |
| JPS5834322A | Recorder for flowmeter | |
| GB2100446A | Variable area fluid flow meter | |
| US4346607A | Fluid flow meter with improved sealing means | |
| US4307405A | Flow meter recording device | |
| ES485783A1 | Improvements in fluid filter devices (Machine-translation by Google Translate, not legally binding) | |
| US4495068A | Fluid filtering device | |
| JPS5648215A | Filter | |
| US4273651A | Return line filter | |
| US4282761A | Fluid flow meter | |
| US4179372A | Fluid filtering device | |
| JPS5541853A | Filter | |
| US4139466A | Differential fluid pressure indicating device | |
| CA1052296A | Fluid filtering device |