YY

Yoon Yeol Yoon

KR Korea Institute Of Geoscience And Mineral Resources: 2 patents #113 of 360Top 35%
Overall (All Time): #2,076,769 of 4,157,543Top 50%
2
Patents All Time

Issued Patents All Time

Showing 1–2 of 2 patents

Patent #TitleCo-InventorsDate
8512557 Radon reduction apparatus Kil Yong Lee, Kyung Seok Ko 2013-08-20
8070944 Groundwater radon reduction apparatus Kil Yong Lee, Kyung Seok Ko 2011-12-06