Patent Leaderboard
USPTO Patent Rankings Data through Dec 31, 2025

Hayward, CA ranks #375 worldwide for total patents filed in 2021, with 385 patents from 190 inventors. Leading employers of inventors based in Hayward, CA include IBM, PayPal, Abbott. That works out to 2.4 patents per 1,000 residents, a common benchmark for comparing regional innovation intensity.

Showing 1–50 of 190 inventors

Rank Inventor Primary Company Patents
1 Karthik Balakrishnan IBM 32
2 Rahul Nair PayPal 10
3 Gary Ashley Stafford Abbott 9
#4 Krisztian Kiss Apple 7
#4 Matthias Passlack TSMC 7
#6 Liang Dong Imra America 6
#6 Joseph L. Spears Ipar 6
#8 Alex Fielding Ripcord 5
#8 Kevin Christopher Hall Ripcord 5
#10 Jerome Rhodes Wells Fargo Bank, N.A. 4
#10 Timothy Patrick Forsyth Exelixis 4
#10 Ashwini Bijwe Salesforce 4
#10 Goutami Banerjee Fornia Biosolutions 4
#10 David Huang Oregon Health & Science University 4
#10 Robert L. Clark, III Ulthera 4
#10 Michael Persiantsev Sharewave 4
#10 Dan Hero De Guzman Cajumban Dmf 4
#10 Marcus A. Worsley Lawrence Livermore National Security 4
#10 David Daoud Aziz Finelite 4
#10 Christopher W. Lange Chemocentryx 4
#10 Eric Bellman Conxtech 4
#10 Xu Zhang Hermes Microvision 4
#10 Yinhong Chen Amgen 4
#10 Doug Collins Larq 4
#25 Lingtao Cao IBM 3
#25 Xiqiang Yang Eastman Kodak 3
#25 Ellery Cochell AMD 3
#25 Robert J. Simmons Conxtech 3
#25 Bryant Chen IBM 3
#25 Vinh Diep Sandisk Technologies 3
#25 Kent Kahle Trimble 3
#25 Richard T. Reel Applied Biosystems 3
#25 Howard W. Turner ExxonMobil 3
#25 Joseph Peter Vierra Traina Interactive 3
#25 Kevin Marek Conxtech 3
#25 William B. Tenney Onq Solutions 3
#25 Kimberly Lembo Ripcord 3
#25 Yitao Liao Rayvio 3
#25 Maxwell C. Simmons Conxtech 3
#25 Tarjei Sigurd Mikkelsen 10X Genomics 3
#41 Shujun Luo Personalis 2
#41 John M. White Applied Materials 2
#41 Aaron Van Pelt Picarro 2
#41 Paul H. Pax Lawrence Livermore National Security 2
#41 Mary Diane Feingersh Bristol-Myers Squibb 2
#41 Sanjeev Redkar Supergen 2
#41 Jens Jordan HURLEY Ripcord 2
#41 David B. Robinson National Technology & Engineering Solutions Of Sandia 2
#41 Crystal Kay Sein-Lwin Incumedx 2
#41 Gisela Schwab Exelixis 2

Part of California