Patent Leaderboard
USPTO Patent Rankings Data through Sept 30, 2025

IBM

Rank (2021): #2 of 31,507Top 1%
11,638 inventors
8,938 Patents 2021

Top Inventors at IBM 2021

Showing 1–50 of 11,638 inventors

RankNamePatents
1 Kangguo Cheng 252
2 Sarbajit K. Rakshit 186
3 Alexander Reznicek 128
#4 Jeremy R. Fox 113
#5 Lokesh M. Gupta 112
#6 Ruilong Xie 110
#7 Choonghyun Lee 99
#8 Juntao Li 96
#9 Takashi Ando 90
#10 Chih-Chao Yang 84
#11 Shikhar Kwatra 83
#12 Lawrence A. Clevenger 74
#12 Matthew G. Borlick 74
#14 Valentina Salapura 72
#15 Liam Harpur 71
#15 Paul R. Bastide 71
#17 Kevin J. Ash 65
#18 Fang Lu 64
#18 Lisa Seacat DeLuca 64
#18 Martin G. Keen 64
#21 Jonathan Dunne 61
#22 Clifford A. Pickover 59
#23 Devendra K. Sadana 58
#24 James E. Bostick 57
#25 Chen Zhang 56
#25 Michael Tsirkin 56
#27 Aaron K. Baughman 55
#27 Gregory J. Boss 55
#27 John M. Ganci, Jr. 55
#27 Joseph Kuczynski 55
#27 Xin Miao 55
#32 Kyler A. Anderson 54
#32 Michael K. Gschwind 54
#34 Kelley Anders 52
#34 Pouya Hashemi 52
#36 Chanro Park 50
#37 Junli Wang 49
#37 Kuntal Dey 49
#37 Vijay Ekambaram 49
#40 Corville O. Allen 48
#41 Jingyun Zhang 47
#42 Jeremy A. Greenberger 46
#43 Peng Xu 45
#44 Bahman Hekmatshoartabari 42
#44 Michael Bender 42
#46 James R. Kozloski 41
#46 Jason T. Wertz 41
#46 Su Liu 41
#49 Craig M. Trim 40
#49 Effendi Leobandung 40