| # | Country | Total Patents | |
|---|---|---|---|
| #1 | Republic of Korea | 15 | |
| #2 | China | 1 |
| # | Industry | |
|---|---|---|
| #1 | Environmental technology | |
| #2 | Chemical engineering | |
| #3 | Civil engineering |
| # | Technology | |
|---|---|---|
| #1 | Garbage disposal | |
| #2 | Solid waste disposal | |
| #3 | Sewers | |
| #4 | Water treatment | |
| #5 | Separation |
| # | Name | Total Patents |
|---|---|---|
| #1 | Ji Ki Hyun | 16 |
| Publication | Filing date | Title |
|---|---|---|
| KR101455962B1 | Gathering disposal units of the food waste in apartment houses | |
| KR20150046859A | The filtering and reusing system of the gray water in the apartment and the aggregate building |