Issued Patents 2020
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 10876020 | Polishing additive composition, polishing slurry composition and method for polishing insulating film of semiconductor element | Ja Hwa Ahn | 2020-12-29 |
| 10844244 | Polishing additive composition, polishing slurry composition and method for polishing insulating film of semiconductor element | Jong-Ho Park | 2020-11-24 |