Issued Patents All Time
Showing 1–13 of 13 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 11695367 | Day-night photovoltaic system | Soon Deuk Lee | 2023-07-04 |
| 11678616 | Plant cultivation system using trolley conveyor | Jeong-Yoon Kim | 2023-06-20 |
| 11653601 | Plant cultivation system using plant hangers with plant trays at multiple heights | — | 2023-05-23 |
| 11654734 | Actuator coupler for hitch connection | — | 2023-05-23 |
| 11364753 | Actuator coupler for hitch connection | — | 2022-06-21 |
| 11299352 | Automatic cart transport system | — | 2022-04-12 |
| 11273989 | Chain driving sprocket for trolley conveyors | — | 2022-03-15 |
| 11078022 | Connector block for connecting links in trolley chain | — | 2021-08-03 |
| 9893560 | AC-DC power supply device and switching mode power supply device | — | 2018-02-13 |
| 9635720 | Alternating current (AC)-direct current (DC) power booster and AC-DC power control module for AC and DC illuminations | — | 2017-04-25 |
| 9462643 | Alternating current (AC)-direct current (DC) power booster and AC-DC power control module for AC and DC illuminations | — | 2016-10-04 |
| 9231437 | AC-DC power supply device and switching mode power supply device | — | 2016-01-05 |
| D658103 | Vehicle wheel | Chun Choe | 2012-04-24 |