Patent Leaderboard
USPTO Patent Rankings Data through Dec 31, 2025

Castaic, CA ranks #3,753 worldwide for total patents filed all time, with 780 patents from 130 inventors. Leading employers of inventors based in Castaic, CA include Pacesetter, Valencia Technologies, Karl Storz Imaging. That works out to 41.2 patents per 1,000 residents, a common benchmark for comparing regional innovation intensity.

Showing 1–50 of 130 inventors

Rank Inventor Primary Company Patents
1 Stuart Rosenberg Pacesetter 105
2 Chuladatta Thenuwara Valencia Technologies 71
3 George E. Duckett, III Karl Storz Imaging 52
#4 Quan Gan Green Solution Technology Co. 38
#5 Scott A. Crawford Advanced Bionics Ag 36
#6 Zdzislaw B. Malinowski Boston Scientific 27
#7 William N Alexander Fna Ip Holdings 22
#8 Mark Leroy Walker Thomson Licensing 16
#9 Kenny Kinyen Chinn Boston Scientific 15
#9 Thomas H. Pang 3D Systems 15
#9 Robert P. O'Hara Woodward 15
#12 Yizhong Sun 14
#13 Randall Lee Brase Boston Scientific 12
#14 Paul E. Kreyenhagen Siemens Pacesetter 11
#14 Richard B. Hurter Kupa 11
#16 David P. Green Directv 10
#16 Nathan A. Nuttall Elenion Technologies 10
#16 Bruce E. Renslow Hanson Research 10
#16 Mikhail Aksenfeld Rovi Guides 10
#20 William Andrew Brandt Alfred E. Mann Foundation For Scientific Research 9
#20 Matthew F. Schnittker Disney 9
#22 Kim Coakley Hr Textron 8
#22 Joseph W. Longson Disney 8
#24 Attila Antalfy Alfred E. Mann Foundation For Scientific Research 7
#24 David Maga 7
#24 Leland M. Nicolai Lockheed Martin 7
#24 Ronnie S. Espiritu Harman International Industries, Incorporated 7
#28 Michael R. Smither Interlink Electronics 6
#28 Anthony Christopher Anderson Comcast 6
#28 Mark S. Curtis Medtronic 6
#28 Rajinder Sandhu 6
#28 Peter J. Current Pacific Scientific Energetic Materials Company (California) 6
#28 Randy L. Brase Boston Scientific 6
#34 Jeffrey Morton Ford 5
#34 Tsui Happy Nec 5
#34 Chuladatta Thenawara Advanced Bionics Ag 5
#34 Roberto Arance Ultraviolet Devices 5
#34 Proyag Datta Second Sight Medical Products 5
#34 Valerie McMahon Warner Bros. Entertainment 5
#40 William Siemantel 4
#40 Gilbert Martinez 4
#40 Kevin Bloomfield Mga Entertainment 4
#40 Edward Stapleford Nielsen Amgen 4
#40 John Buiatti Jas D. Easton 4
#40 Clyde D. Totten 4
#46 Armando Martinez Harman International Industries, Incorporated 3
#46 Steven A. Hazard Advanced Bionics Ag 3
#46 Jeff Sallee Kmc Music 3
#46 James E. Yokers Directv 3
#46 Tae Mark Chung 3D Systems 3

Part of California