Issued Patents All Time
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| D963884 | Handrail sterilizer | — | 2022-09-13 |
| 10160622 | Self-powered handrail sterilizing device and information collecting device using handrail sterilizing device | Chi-Young Kang, Hyun-Seog Kim | 2018-12-25 |
| 8871406 | Highly proton conductive crosslinked vinylsulfonic acid polymer electrolyte composite membranes and its preparation method for polymer electrolyte fuel cells | Young Woo Choi, Chang-Soo Kim, Gu-Gon Park, Seok-Hee Park, Sung Dae Lim +6 more | 2014-10-28 |