Issued Patents All Time
Showing 1–6 of 6 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 8387307 | Vegetation base soil and a method for growing vegetation on a sloped surface | — | 2013-03-05 |
| 7992344 | Artificial soil and method for growing vegetation on sloped surface using the same | — | 2011-08-09 |
| 7788846 | Artificial soil and method for growing vegetation on sloped surface using the same | — | 2010-09-07 |
| 6801116 | Overload protector with hermetically sealing structure | Yong Kyun Oh, Yeon-Keun Chung | 2004-10-05 |
| 5662724 | Artificial soil composition and a method of growing vegetation on a sloped surface | — | 1997-09-02 |
| 5607494 | Artificial soil composition and a method of growing vegetation on a sloped surface | — | 1997-03-04 |