Issued Patents All Time
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 10683832 | Exhaust gas recirculation cooler | Sung Il Yoon, Dong-Young Lee, Seogjin Yoon, In Sung Yun | 2020-06-16 |
| 10253730 | Water-cooled EGR cooler, and the manufacturing method thereof | Sung Il Yoon, Dong-Young Lee, Seogjin Yoon, In Sung Yun | 2019-04-09 |
| 10113515 | Water cooled EGR cooler | Sung Il Yoon, Dong-Young Lee, In Sung Yun | 2018-10-30 |
| 8175066 | Apparatus and method for providing packet data service using heterogeneous networks | — | 2012-05-08 |
| 6469999 | Method for connecting daisy chained base transceiver stations by utilizing a multiplexer and demultiplexer and the apparatus thereof | Byung-Chul Kim | 2002-10-22 |