Patent Leaderboard
USPTO Patent Rankings Data through Dec 31, 2025

Ansan-si, KR ranks #496 worldwide for total patents filed all time, with 6,631 patents from 868 inventors. Leading employers of inventors based in Ansan-si, KR include Hyundai Motor, Samsung, Seoul Viosys Co..

Showing 1–50 of 868 inventors

Rank Inventor Primary Company Patents
1 Seongwook Ji Hyundai Motor 270
2 Dae-sung Cho Samsung 162
3 Jong Hyeon Chae Seoul Viosys Co. 145
#4 Yeo Jin Yoon Seoul Viosys Co. 140
#5 Eun Sung Lee Samsung 114
#5 Joon Hee Lee Samsung 114
#7 Eun Young Kim Samsung 112
#8 Young Hyun Kim Samsung 107
#9 Seong Wook Ji Hyundai Motor 78
#10 Motonobu Takeya Seoul Semiconductor Co. 77
#11 Jong-hyun Ryu Samsung 66
#12 Hyun A Kim Seoul Viosys Co. 59
#13 Jun Yong Park Samsung 57
#14 Won Cheol Seo Seoul Opto Device Co. 55
#15 Jae Kwon Kim Samsung 53
#16 Seong Jin Lee Seoul Semiconductor Co. 52
#16 Hwa Mok Kim Seoul Viosys Co. 52
#18 Jung-Gun You Samsung 51
#18 Won Young Roh Seoul Viosys Co. 51
#20 Ki Bum Nam Seoul Semiconductor Co. 48
#21 Nam Goo Cha Samsung 46
#22 Sang-Gil Lee Samsung 45
#22 Joon Sup Lee Seoul Viosys Co. 45
#24 Nam-Soo Kang Samsung 44
#25 Seong Gyu Jang Seoul Viosys Co. 43
#26 Kyung Hee Ye Seoul Viosys Co. 40
#27 Dae Sung Kal Seoul Opto Device Co. 39
#27 Jong Kook Lee Seoul Semiconductor Co. 39
#29 Bong-joo Kim Samsung 37
#29 Dong Ho Chu Hyundai Motor 37
#29 Chang Youn Kim Seoul Viosys Co. 37
#32 Hyun-Ho Kang Samsung 36
#32 Young-Wug Kim Samsung 36
#32 Jungsik Kim LG 36
#35 Jae Hak Jeong Seoul Viosys Co. 34
#35 Jung Hwa Jung Seoul Semiconductor Co. 34
#37 Ki Yon Park Seoul Viosys Co. 33
#37 Hark-joon Kim Samsung 33
#39 Jong Rack Kim Seoul Viosys Co. 32
#39 Bang Hyun Kim Seoul Semiconductor Co. 32
#41 Seung Kyu Choi Seoul Viosys Co. 31
#41 Jong Ik Lee Seoul Semiconductor Co. 31
#41 Dae Woong Suh Seoul Viosys Co. 31
#44 Jong Kyun You Seoul Viosys Co. 30
#44 Seong Kyu Jang Seoul Viosys Co. 30
#46 Se Hee Oh Seoul Viosys Co. 28
#46 HeeSeok Yang LG 28
#48 Sung Bae Jeon Hyundai Motor 27
#48 Young Su Heo University-Industry Cooperation Group Of Kyung Hee University 27
#48 Sung Kwang Kim Samsung 27