Issued Patents All Time
Showing 1–9 of 9 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 12301373 | Apparatus and method for using messenger service of group chat room | Chang Min Chung, Go En Choi, Hyo-Sun Kim, Ju Ho Chung, Yoo Hyuk Lim +9 more | 2025-05-13 |
| 12180902 | Control method of valve opening and closing for an engine and a valve control apparatus of the engine | Back Sik Kim, Jinyoung Jung | 2024-12-31 |
| 11939890 | Continuous variable valve duration apparatus and control method for the same | Back Sik Kim, Jinyoung Jung | 2024-03-26 |
| 11901538 | Sodium secondary battery module | Keeyoung Jung, Choong-Mo Yang, Yoon-Cheol Park, Sori SON | 2024-02-13 |
| 11795883 | Apparatus and method of controlling an engine | Back Sik Kim, Jinyoung Jung | 2023-10-24 |
| 11713925 | Sagger for firing secondary battery active material and method for manufacturing secondary battery active material using same | Young Min Park, Woo Taek KIM, Soon Cheol Hwang, Choong-Mo Yang, Yoon-Cheol Park +1 more | 2023-08-01 |
| 11306627 | Continuous variable valve duration apparatus and engine provided with the same | Kyoung Pyo Ha, Back Sik Kim, Jong Gu Kim | 2022-04-19 |
| 11306628 | Continuous variable valve duration apparatus and engine provided with the same | Kyoung Pyo Ha, Back Sik Kim, Jong Gu Kim | 2022-04-19 |
| 11255281 | Control method for cylinder deactivation and engine to which the same is applied | Kyoung Pyo Ha | 2022-02-22 |