| # | Country | Total Patents | |
|---|---|---|---|
| #1 | Republic of Korea | 20 |
| # | Industry | |
|---|---|---|
| #1 | Engines, pumps and turbines | |
| #2 | Environmental technology | |
| #3 | Machine tools | |
| #4 | Digital networks | |
| #5 | Mechanical elements |
| # | Technology | |
|---|---|---|
| #1 | Spring or inertia motors | |
| #2 | Reduction of greenhouse gas emissions | |
| #3 | Presses | |
| #4 | Gearing | |
| #5 | Forging | |
| #6 | Digital information transmission |
| # | Name | Total Patents |
|---|---|---|
| #1 | Lee Hark Jin | 20 |
| Publication | Filing date | Title |
|---|---|---|
| KR20110019771A | Rotator | |
| KR20090065489A | Earth Gravity Rotator | |
| KR20080081223A | Earth Gravity Rotator | |
| KR20080064106A | Earth Gravity Rotator | |
| KR20080076680A | Earth Gravity Rotator | |
| KR20070054163A | Earth Gravity Rotator | |
| KR20060119842A | Earth Gravity Rotator | |
| KR20080006075A | Standard method-based user-oriented integrated architecture for distributed home network middlewares | |
| KR20060083182A | 地球 引力 廻 轉機 | |
| KR20060083177A | Subsidiary | |
| KR20060045091A | Subsidiary | |
| KR20050033411A | Rotator | |
| KR20040016915A | Rotating machine | |
| KR20030051531A | Rotary machine | |
| KR20030031529A | Rotation device | |
| KR20030026288A | Torque booster | |
| KR20040014088A | Rotator | |
| KR20020041792A | Power rotor | |
| KR20020023979A | Toggle mechanism | |
| KR20010082469A | Subsidiary |