Chungcheongbuk-do
Korea (South)
1
2015-11-19
The entities that hold a legal rights for patent applications filed by inventor Ryu Yeon-kwon:
Yeon-kwon Ryu from Chungcheongbuk-do, KR has applied for patents for these inventions. The list has both pending applications and granted patents:
1364040 ⎘