| # | Country | Total Patents | |
|---|---|---|---|
| #1 | Republic of Korea | 17 |
| # | Industry | |
|---|---|---|
| #1 | Transport | |
| #2 | Electrical machinery and energy | |
| #3 | Engines, pumps and turbines | |
| #4 | Mechanical elements | |
| #5 | Furniture and games | |
| #6 | Environmental technology |
| # | Technology | |
|---|---|---|
| #1 | Wheelchairs and sledges | |
| #2 | Dynamo-electric machines | |
| #3 | Gearing | |
| #4 | Skates | |
| #5 | Cycles | |
| #6 | Reduction of greenhouse gas emissions | |
| #7 | Wind motors | |
| #8 | Machines for liquids | |
| #9 | Cycle accessories | |
| #10 | Special wind, spring and weight motors |
| # | Name | Total Patents |
|---|---|---|
| #1 | Yoo Jae Hee | 17 |
| #2 | Yoo Jong Uck | 14 |
| #3 | Kim Hee Kyung | 1 |
| #4 | Moon Jong Sub | 1 |
| Publication | Filing date | Title |
|---|---|---|
| KR20190022061A | Appliances using a DC motor reducer | |
| KR20170054690A | Unicycle | |
| KR20150032678A | Clutch bearings and lever used rotators | |
| KR20150003126A | Rotator | |
| KR20140044345A | Rotator | |
| KR20140043914A | Rotator | |
| KR20140044346A | Rotator | |
| KR20130055797A | Rotator | |
| KR20120080290A | Multfunction high rotor | |
| KR20120022309A | Waves and current generator, and wind turbines | |
| KR20120021773A | Multifunction fower reducers | |
| KR20110118262A | Multifunction bicycle | |
| KR20110114145A | Many kinds of rectifier | |
| KR20100136008A | Brushless dc motor | |
| KR20100082936A | High-pressure pump | |
| KR20080095953A | Brushless dc motor | |
| KR20000058684A | A touch type mouse |