KK

Kwan Ho Ko

EC Em-Tech Co.: 1 patents #33 of 70Top 50%
Overall (All Time): #3,118,231 of 4,157,543Top 80%
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Issued Patents All Time

Patent #TitleCo-InventorsDate
8794374 Acoustic transducer device Ji Hoon Kim, Joong Hak Kwon 2014-08-05