Patent Leaderboard
USPTO Patent Rankings Data through Dec 31, 2025

Cheongju-si, KR ranks #809 worldwide for total patents filed all time, with 4,169 patents from 787 inventors. Leading employers of inventors based in Cheongju-si, KR include Samsung, Daewoo Shipbuilding & Marine Engineering Co., Ecopro Bm Co..

Showing 1–50 of 787 inventors

Rank Inventor Primary Company Patents
1 Tae-Kyoung Kang Samsung 79
2 Jun-Won Suh Samsung 73
3 Jung Han Lee Daewoo Shipbuilding & Marine Engineering Co. 63
#4 Kyeong-Hyeon Kim Samsung 62
#5 Moon Ho CHOI Ecopro Bm Co. 59
#6 Young-Sun Park Samsung 45
#7 Jae Kwang Kim Samsung 44
#8 Chan-Yong Park KAIST 42
#9 Dek-Gin Yang Samsung 39
#9 Sang Il Ahn Hyperconnect 39
#11 Kwang Won Lee Jungwoo Metal Ind. Co. 38
#12 Hong Yeol Lee KAIST 35
#13 Sung-ha Park Samsung 34
#13 Ha Na Park Cj Cheiljedang 34
#15 Sangil Ahn Hyperconnect 32
#16 Hyo San Kim Korloy 29
#17 Byung Hoon Min Lg Hausys 27
#18 Sung-Ho Shin Samsung 26
#18 Chan Kyu Park KAIST 26
#18 Ji Hye Yeon Samsung 26
#21 Ki Jun SUNG Sk Hynix 25
#21 Hye Min Park LG 25
#21 Hyun Jong YU Ecopro Bm Co. 25
#24 Eun-Suk Cho Samsung 24
#25 Cheol Jin Lee Korea University Research And Business Foundation 23
#25 Kwang-Soo Lim Cqv Co. 23
#25 Won-Kyu Lim Samsung 23
#25 Hang Suk Choi LG 23
#25 Jae-Hoon Kang Ildong Pharm Co. 23
#30 Jin Han Lee Samsung 22
#30 Hee-Dae Kim Sfc Co. 22
#30 Eun-Kyu Lee Merck 22
#33 Kyung Min Lim Amorepacific 21
#33 Choong-Yong Sohn Samjin Lnd Co. 21
#35 Byung-sun YANG Sfc Co. 20
#35 Nam Seon Lee Korloy 20
#35 Byung Ho Park LG 20
#35 Hyung-Suk Choi Magnachip Semiconductor 20
#35 Sun-Yong Ahn Korloy 20
#35 Seunghwa Ha Samsung 20
#41 Chang-Hyeon Ji LG 19
#41 Yong Sup Lee Korea Institute Of Science And Technology 19
#41 Sung-Seock Hwang Lg Hausys 19
#41 Jong-Tae Je Sfc Co. 19
#45 Chang-sik Lim Magnachip Semiconductor 18
#45 Gyeong Ho Lee Lsis Co. 18
#45 Kil-Wan Chang Cqv Co. 18
#45 Hyung-Yong Kim LG 18
#45 Bong-ki SHIN Sfc Co. 18
#50 Bo Seok Oh Magnachip Semiconductor 17