Issued Patents 2021
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| D931408 | Water purifier | Najung Cho, Hyoungwon Roh, Kyukwan Choi | 2021-09-21 |
| D930784 | Water purifier | Najung Cho, Hyoungwon Roh, Kyukwan Choi | 2021-09-14 |
| D921151 | Water purifier | Najung Cho, Hyoungwon Roh, Kyukwan Choi | 2021-06-01 |
| D917672 | Water tap for water purifier | Hyoungwon Roh, Najung Cho, Kyukwan Choi | 2021-04-27 |
| D914834 | Main body of water purifier | Najung Cho, Hyoungwon Roh, Kyukwan Choi | 2021-03-30 |
| D914772 | Kitchen island with wine cooler | Hyungki Kim, Kyukwan Choi, Wonsang Choi | 2021-03-30 |
| D910143 | Water purifier | Najung Cho, Kyukwan Choi, Hyoungwon Roh | 2021-02-09 |
| D908834 | Water purifier | Najung Cho, Kyukwan Choi, Hyoungwon Roh | 2021-01-26 |