| # | Country | Total Patents | |
|---|---|---|---|
| #1 | Republic of Korea | 5 | |
| #2 | United States | 3 | |
| #3 | EPO (European Patent Office) | 2 | |
| #4 | Japan | 2 | |
| #5 | China | 1 |
| # | Industry | |
|---|---|---|
| #1 | Thermal processes | |
| #2 | Engines, pumps and turbines | |
| #3 | Furniture and games | |
| #4 | Chemical engineering | |
| #5 | Environmental technology | |
| #6 | Machines |
| # | Technology | |
|---|---|---|
| #1 | Air-conditioning | |
| #2 | Non-positive-displacement pumps | |
| #3 | Domestic stoves | |
| #4 | Domestic washing | |
| #5 | Climate change mitigation in buildings | |
| #6 | Cyclones | |
| #7 | Separation |
| # | Name | Total Patents |
|---|---|---|
| #1 | Oh Hee Bum | 7 |
| #2 | Oh Hui Beom | 5 |
| #3 | Oh Hee-Beom | 1 |
| Publication | Filing date | Title |
|---|---|---|
| KR102059802B1 | Range hood with vortex fan | |
| KR20190122127A | Airborne Dust Cleaner with vortex vacuum generator at the inlet | |
| KR101943383B1 | Airborne Dust Cleaner with vortex vacuum generator at the inlet | |
| EP3249235A1 | Ventilator module with swirler fan | |
| CN107178513A | Ventilation unit module with cyclone fan | |
| KR20160069500A | Vantilator module with swilrer fan | |
| KR101625828B1 | Vantilator module with swilrer fan |