| # | Country | Total Patents | |
|---|---|---|---|
| #1 | United States | 24 | |
| #2 | Canada | 7 | |
| #3 | Germany | 6 | |
| #4 | United Kingdom | 2 | |
| #5 | France | 1 | |
| #6 | Italy | 1 | |
| #7 | Japan | 1 |
| # | Industry | |
|---|---|---|
| #1 | Chemical engineering | |
| #2 | Machines | |
| #3 | Mechanical elements | |
| #4 | Measurement | |
| #5 | Machine tools | |
| #6 | Engines, pumps and turbines | |
| #7 | Thermal processes |
| # | Technology | |
|---|---|---|
| #1 | Separation | |
| #2 | Unspecified technologies | |
| #3 | Servomotors | |
| #4 | Venting or aerating devices | |
| #5 | Measuring volume | |
| #6 | Unspecified technologies | |
| #7 | Measuring force, work and fluid pressure | |
| #8 | Air-conditioning | |
| #9 | Rolling metal | |
| #10 | Supplying combustion engines |
| # | Name | Total Patents |
|---|---|---|
| #1 | Rosaen Borje O | 26 |
| #2 | Fosdick Dale P | 8 |
| #3 | Rosaen Nils O | 7 |
| #4 | Rosaen Oscar E | 2 |
| #5 | Olav Rosaen Nils | 2 |
| #6 | Olaf Rosaen Nils | 1 |
| #7 | Deiru Pii Fuosudeitsuku | 1 |
| #8 | Oscar Rosaen Borje | 1 |
| #9 | Emanuel Rosaen Oscar | 1 |
| #10 | Buujiyu Oo Roozain | 1 |
| Publication | Filing date | Title |
|---|---|---|
| US4970004A | Vibrating sieve filter | |
| US4721563A | Fluid filtering device | |
| US4651570A | Differential pressure monitor | |
| US4574047A | Filtering device | |
| US4496459A | Flexible filter device with means to position filter bag | |
| US4497336A | Valve assembly | |
| US4419240A | Fluid filtering device | |
| US4485844A | Back pressure inducer | |
| US4434670A | Fluid flow meter | |
| US4387022A | Fluid filtering device | |
| US4399033A | Fluid filtering device | |
| US4372855A | Filter device with air bleed | |
| US4299696A | Fluid filtering device | |
| US4281554A | Fluid flow meter | |
| US4265761A | Fluid filtering device | |
| US4265271A | Relief valve | |
| US4167483A | Fluid filtering device | |
| US4268384A | Spin-off filter head assembly | |
| DE2632441A1 | DEVICE FOR FILTERING FLUIDS, IN PARTICULAR LIQUIDS | |
| CA963403A | Self cleaning filters |