Issued Patents 2002
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6475944 | Vanadia catalyst impregnated on titania-pillared clay for the removal of nitrogen oxide | Seok-Lyong Song, Hyun-Chul Choi, In-Sik Nam, Ho Jeong Chae | 2002-11-05 |
| 6451684 | Semiconductor device having a conductive layer side surface slope which is at least 90° and method for manufacturing the same | Myeong-Cheol Kim | 2002-09-17 |