Issued Patents 2019
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 10229900 | Semiconductor memory device including stacked chips and memory module having the same | Sung Chul Park, Won-Il Bae | 2019-03-12 |
| 10188976 | Air purifier, method for determining time to replace filter thereof, and device and method for determining filter replacement time pressure differential therefor | Young-Gun Cho, Ju Hyun BAEK, In Seok SEO, Seong Jin YUN, Chul-Soon Dan +1 more | 2019-01-29 |