Gyeonggi-do
Korea (South)
1
2021-02-11
Bitrtari Kim from Gyeonggi-do, KR has applied for patents for these inventions. The list has both pending applications and granted patents:
COMPOSITION MATERIAL FOR ORGANIC ELECTROLUMINESCENT DEVICE, PLURALITY OF HOST MATERIALS, AND ORGANIC ELECTROLUMINESCENT DEVICE COMPRISING THE SAME
5001167 ⎘