{"@context": "https://schema.org", "@type": "BreadcrumbList", "itemListElement": [{"@type": "ListItem", "position": 1, "name": "Home", "item": "https://www.patentleaderboard.com/"}, {"@type": "ListItem", "position": 2, "name": "2021", "item": "https://www.patentleaderboard.com/2021/"}, {"@type": "ListItem", "position": 3, "name": "Cities", "item": "https://www.patentleaderboard.com/2021/cities"}, {"@type": "ListItem", "position": 4, "name": "California", "item": "https://www.patentleaderboard.com/2021/state/california"}, {"@type": "ListItem", "position": 5, "name": "South Pasadena, CA", "item": "https://www.patentleaderboard.com/2021/city/south-pasadena-ca"}]}
Patent Leaderboard
USPTO Patent Rankings Data through Dec 31, 2025

South Pasadena, CA ranks #1,350 worldwide for total patents filed in 2021, with 103 patents from 39 inventors. Leading employers of inventors based in South Pasadena, CA include Caltech, AT&T, Sony. That works out to 3.8 patents per 1,000 residents, a common benchmark for comparing regional innovation intensity.

Showing 1–39 of 39 inventors

Rank Inventor Primary Company Patents
1 Robert H. Grubbs Caltech 18
2 Yupeng Jia AT&T 17
3 Harry A. Atwater Caltech 9
#4 James R. Milne Sony 8
#5 Andrew Homyk Verily Life Sciences 4
#6 Jonathan Seamus Blackley Pacific Light & Hologram 3
#6 Yu-Han Chang Second Spectrum 3
#8 Hiroaki Shizuya Ablexis 2
#8 Abhi Nutankumar Gandhi Itt Manufacturing Enterprises 2
#8 Takuya Idehara Honda Motor Co. 2
#8 Christopher R. Logg Tocagen 2
#8 Jeffrey Wayne Su Second Spectrum 2
#8 Philip Fong Irobot 2
#8 Haochuan Wang Avery Dennison 2
#8 Jon Estanislao Microsoft 2
#8 Harry Wong Valtra 2
#17 Andrew Michael Lowery Realwear 1
#17 Brandon Phillip Berquam 1
#17 Hitesh Pau 1
#17 Gregory Yujiro Tada Kawasaki 1
#17 Philip Ho Mga Entertainment 1
#17 Damien C. Rodger Caltech 1
#17 Leonard Kim Adp 1
#17 Jordan Tremaine Despanie University Of Southern California 1
#17 Menake E. Piyasena Stc.Unm 1
#17 Yaniv Bar-Cohen Children'S Hospital Los Angeles 1
#17 Sungki Min Samsung 1
#17 Willett Tuitele 1
#17 Gerald E. Loeb Advanced Bionics Ag 1
#17 Chun Meng Strong Force Iot Portfolio 2016 1
#17 Jeffrey J. Bennett Utility Trailer Manufacturing 1
#17 Ramiro Magalhaes Ribeiro 1
#17 Eric B. Fulghum Performance Designed Products 1
#17 Ivan Grudinin General Motors 1
#17 Frederick C. Lee Hydril 1
#17 Thomas F. Miller, III Caltech 1
#17 Jason G. Fong Disney 1
#17 Michael Musick Surromed 1
#17 Anthony Paul Dohi Disney 1

Part of California