Issued Patents 2002
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6443826 | Polishing head of a chemical mechanical polishing apparatus and, retainer ring of the same | Yun-Sik Yang, Kyung-Dae Kim, Min Gyu Kim | 2002-09-03 |
HC
Hun Cha
Overall (2002): #202,934 of 266,432Top 80%
1
Patents 2002