Issued Patents 2022
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 11427509 | Cement additive composition comprising polycarboxylic acid-based copolymer | Dong Jo Ryu, Im Gyu Kim, Hyo Min Kim | 2022-08-30 |
CK
Chang Bum Ko
Overall (2022): #498,987 of 548,613Top 95%
1
Patents 2022