Issued Patents All Time
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 8859663 | Calcium carbonate having a surface charge, the preparing process thereof and filler for producing a paper using the same | Dong Ho Yoon, Seung Suk Seo, In Woo Cheong | 2014-10-14 |