CY

Chang Ho Yang

HM Hyundai Motor: 4 patents #2,665 of 11,886Top 25%
📍 Osan-si, KR: #120 of 372 inventorsTop 35%
Overall (All Time): #1,212,868 of 4,157,543Top 30%
4
Patents All Time

Issued Patents All Time

Showing 1–4 of 4 patents

Patent #TitleCo-InventorsDate
9074499 Multiple variable valve lift apparatus and engine provided with the same Soo Hyung Woo, Young Hong Kwak, Byong Young Choi, Jin Kook Kong, Gee Wook Shin 2015-07-07
8726861 Variable valve lift apparatus Byong Young Choi, Jin Kook Kong, Soo Hyung Woo, Young Hong Kwak, Gee Wook Shin +1 more 2014-05-20
8573168 Hydraulic pressure valve apparatus Jei Choon Yang, Byong Young Choi, Young Hong Kwak, Jin Kook Kong, Soo Hyung Woo 2013-11-05
8555829 Variable compression ratio apparatus Dong-Seok Lee, Jei Choon Yang, Eun Ho Lee, Yoonsik Woo, Jin Kook Kong +1 more 2013-10-15