Patent Leaderboard
USPTO Patent Rankings Data through Dec 31, 2025

Rosemead, CA ranks #6,162 worldwide for total patents filed all time, with 402 patents from 116 inventors. Leading employers of inventors based in Rosemead, CA include Mems Drive, Pacific Light & Hologram, Abraxis Bioscience. That works out to 7.8 patents per 1,000 residents, a common benchmark for comparing regional innovation intensity.

Showing 1–50 of 116 inventors

Rank Inventor Primary Company Patents
1 Matthew Ng Mems Drive 34
2 Tina Qin Pacific Light & Hologram 26
3 Andrew Yang Abraxis Bioscience 20
#4 Warren Davis 16
#5 Holger M. Jaenisch RTX (Raytheon) 14
#6 Niraj K. Doshi Siemens Medical Solutions Usa 13
#7 Xiaohu Ouyang Amgen 10
#7 Allen Yu Quach 10
#9 Julie Bui Biosense Webster (Israel) 9
#9 Keith N. Loi Hughes Electronics Limited 9
#9 Jasson Rodriguez Medtronic 9
#12 Dan Fang Carbon Capture 8
#13 Jonathan Ofalla Rgb Systems 7
#13 Sammy Vargas 7
#15 Jianyi Ren Columbia University 6
#15 Hung Tran Freeescale Semiconductor 6
#15 Chao-Yung Yeh Metal Industries Research & Development Centre 6
#15 Johnnie Yip 6
#19 Jianzhi Chen Case-Mate 5
#19 Warren Lam Microsoft 5
#19 Miguel A. Flores Lindsey Manufacturing 5
#19 Chun Kit Ho Mattel 5
#23 Alan C. Lockwood Masco Building Products 4
#23 Peter A. Incando 4
#23 Marlene Hernandez 4
#23 Jeffrey Hang Fastener Technology 4
#23 Arden Yang Astro 4
#23 Vu A. Duong Caltech 4
#23 Po-Min Chen Formosa Plastics 4
#23 Glen R. Martner Geomet, Incorporated 4
#31 Richard Antonio Carranza Montenegro Inpixon 3
#31 Phuoc Nguyen Skorpios Technologies 3
#31 Kam C. Mun 3
#31 Loren Leung Directv 3
#31 An Thien Pham Medtronic 3
#31 Tsu-Hsun Ku Servo Products 3
#31 Vicky Hoang 3
#31 Thomas S. Dobashi Beckman Instruments 3
#31 Glenn M. Haskins Pryor Products 3
#31 David H. Shen Caltech 3
#31 Chan Hans Liu Virgin Mobile Usa 3
#31 Hai Xiang Liu 3
#31 Hoover K. Jung Western Digital Technologies 3
#31 Karen Lang Tomy Company 3
#31 Janell E. Magdaleno L.A. Gear 3
#31 Phillip H. Tang Amtel Corportation 3
#31 Uming T. Jeng The Boeing 3
#31 Seagle Yang 3
#49 Denh T. Sy RTX (Raytheon) 2
#49 Sheryl Blum 2

Part of California