Patent Leaderboard
USPTO Patent Rankings Data through Dec 31, 2025

Hayward, CA ranks #402 worldwide for total patents filed all time, with 7,868 patents from 1,120 inventors. Leading employers of inventors based in Hayward, CA include IBM, Applied Materials, Advanced Cardiovascular Systems. That works out to 48.3 patents per 1,000 residents, a common benchmark for comparing regional innovation intensity.

Showing 1–50 of 1,120 inventors

Rank Inventor Primary Company Patents
1 Karthik Balakrishnan IBM 319
2 John M. White Applied Materials 252
3 Syed Faiyaz Ahmed Hossainy Advanced Cardiovascular Systems 195
#4 Syed F. A. Hossainy Advanced Cardiovascular Systems 179
#5 Krisztian Kiss Apple 156
#5 Liang Dong Imra America 156
#7 Rahul Nair PayPal 133
#8 Avery Fong Ricoh Company 109
#9 David Huang Oregon Health & Science University 102
#10 Howard W. Turner ExxonMobil 98
#11 Matthias Passlack TSMC 91
#12 Marcus A. Worsley Lawrence Livermore National Security 79
#13 Gary Ashley Stafford Abbott 73
#14 Xiqiang Yang Eastman Kodak 71
#15 Robert J. Simmons Conxtech 68
#16 Gerrit A. Slavenburg NVIDIA 56
#17 Richard T. Reel Applied Biosystems 53
#18 Yitao Liao Rayvio 47
#18 Robert L. Clark, III Ulthera 47
#18 Aaron Willey Micron 47
#18 Christopher W. Lange Chemocentryx 47
#18 Suneel Gupta Alza 47
#23 Joseph L. Spears Ipar 46
#23 Gurbir Singh Intel 46
#23 Kent Kahle Trimble 46
#26 Qunshan Gu Google 45
#26 Thomas W. Anderson Lam Research 45
#28 Joseph R. Stetter Transducer Research 42
#29 Anant V. Hegde Scimed Life Systems 39
#29 Luis Ricardo Prada Gomez Google 39
#31 Michael Chen Advance Security 38
#32 Daniel Giaquinta Symyx Technologies 37
#32 Roy D. Roberts Ilc Technology 37
#34 James Edward Johnson GE 34
#35 Robert R. Moore Orthopedic Systems 33
#36 Jeffrey W. Etter Alza 31
#36 Christopher C. Rutter Packaging Systems 31
#38 Vinh Diep Sandisk Technologies 30
#38 David A. Gollnick Cutera 30
#38 Paul Wolber Agilent Technologies 30
#38 Ricardo A. Mariano Apple 30
#38 Timothy Patrick Forsyth Exelixis 30
#43 Tarjei Sigurd Mikkelsen 10X Genomics 29
#43 Farzin Maghoul Yahoo Holdings 29
#43 Thomas R. Alessi Intarcia Therapeutics 29
#43 Olaf Manczak Oracle 29
#43 Hon Kin Chiu National Semiconductor 29
#48 Timothy L. Isaacson Igt 28
#48 David Fitzgerald Wham-O 28
#50 Luc Adam Mendel Biotechnology 26

Part of California