YK

Young Hong Kwak

HM Hyundai Motor: 3 patents #150 of 1,654Top 10%
Overall (2016): #49,326 of 481,213Top 15%
3
Patents 2016

Issued Patents 2016

Showing 1–3 of 3 patents

Patent #TitleCo-InventorsDate
9447739 Variable compression ratio engine Won Gyu Kim, Eun Ho Lee, Myungsik Choi, Yoonsik Woo 2016-09-20
9399932 Variable valve device that varies lift amount of valve Gyu Han Hwang, Jin Kook Kong, Gee Wook Shin, Won Gyu Kim, Myungsik Choi 2016-07-26
9267402 Multistage variable valve lift apparatus, system and engine Soo Hyung Woo, Jong Hyeok Choi, Byong Young Choi, Jin Kook Kong, Gee Wook Shin 2016-02-23