| # | Country | Total Patents | |
|---|---|---|---|
| #1 | Republic of Korea | 14 |
| # | Industry | |
|---|---|---|
| #1 | Engines, pumps and turbines | |
| #2 | Electrical machinery and energy | |
| #3 | Transport | |
| #4 | Mechanical elements | |
| #5 | Environmental technology | |
| #6 | Machines |
| # | Name | Total Patents |
|---|---|---|
| #1 | Song Gi Sung | 14 |
| #2 | Song Oon Hak | 1 |
| Publication | Filing date | Title |
|---|---|---|
| KR100736144B1 | A touch jig for a automatic measuring machine | |
| KR20020093706A | gravitate Engine Use a Airplane | |
| KR20020092863A | Gravitate Engine Use a Car | |
| KR20020087014A | A gravitate Engine | |
| KR20020075834A | gravitate generater | |
| KR20020005539A | gravitate engine | |
| KR20010079100A | Gravity Green Cross Car | |
| KR20010070664A | Power generator using refraction of gravity | |
| KR20010069943A | Power generator using refraction of elastic force | |
| KR20020021574A | tire generator | |
| KR20020007565A | shoses generator | |
| KR20010081583A | A generator | |
| KR20000060842A | A generator | |
| KR20000014239A | Generator for increasing power and performing simultaneously input and output |