2 Patents
#31 in Gyeongsangbuk-do
#3,600 in South Korea
Youil Corporation Co., Ltd.
Forward Citations = 23
4 inventors:
4 inventors (with patents filed for the assignee):
Hoo-Sung Chang (2 out of 2 patents)
Il-Sun Ryu (2 out of 2 patents)
Il Sun Ryu (0 patent)
4. Hoo Sung Chang (0 patent)
2 patents:
#31 in Gyeongsangbuk-do
#3,600 in South Korea
4 inventors: