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Patent Leaderboard
USPTO Patent Rankings Data through Dec 31, 2025

Rankings count each patent once by its primary Cooperative Patent Classification. All-time pages aggregate the full database; year pages use patent grant year.

Recent years: 2016201720182019202020212022202320242025

Patents per Year

Patents granted per year, 1996 to 2025Bar chart with a peak of 427 patents in 2014.peak 4271996: 255 patents19961997: 253 patents1998: 322 patents1999: 264 patents19992000: 185 patents2001: 257 patents2002: 263 patents20022003: 272 patents2004: 233 patents2005: 205 patents20052006: 188 patents2007: 174 patents2008: 200 patents20082009: 201 patents2010: 217 patents2011: 194 patents20112012: 244 patents2013: 335 patents2014: 427 patents20142015: 353 patents2016: 344 patents2017: 388 patents20172018: 353 patents2019: 354 patents2020: 395 patents20202021: 296 patents2022: 357 patents2023: 254 patents20232024: 288 patents2025: 269 patents2025

Top Inventors

Rank Inventor Patents Primary Company
1 Krishna P. Singh 10 Holtec International
2 Brian Regna 4 Curium Us
3 Craig Brunkhorst 4 Curium Us
#4 David Pipes 4 Curium Us
#5 Derek Haas 4 Natura Resources
#6 Emily D. Fleming 4 Bwxt Advanced Technologies
#7 Jacob DeWitte 4 Oklo
#8 Lauren Radford 4 Curium Us
#9 Patrick Everett 4 Oklo
#10 Ryan Z. Ziegler 4 Bwxt Nuclear Energy
#11 Scott J. Shargots 4 Bwxt Mpower
#12 Shaun Loveless 4 Curium Us
#13 William Uhland 4 Curium Us
#14 Allan Casciola 3 Curium Us
#15 Julian Frederick Kelly 3
#16 Michael John Eades 3 Ultra Safe Nuclear
#17 Paolo Francesco Venneri 3 Ultra Safe Nuclear
#18 Roy H. Larsen 3 Sciencons As
#19 Ryan Melcher 3 Ebay
#20 Alex Renner 2 Oklo
#21 Benjamin D. Fisher 2 Bwxt Advanced Technologies
#22 Caroline Cochran 2 Oklo
#23 Cenk Guler 2 Westinghouse Electric
#24 Christer N. Dahlgren 2 Ge-Hitachi Nuclear Energy Americas
#25 Christopher Langer 2 Quantinuum
#26 Cheng Ni 2 Shanghai United Imaging Healthcare Co.
#27 Claudio Filippone 2 Carbon Free Holdings
#28 Craig D. GRAMLICH 2 Bwxt Advanced Technologies
#29 Curtis Volin 2 Quantinuum
#30 Dai Haraguchi 2 Hamamatsu Photonics K.K.
#31 David K. Haslet 2 Bwxt Advanced Technologies
#32 David Hawn 2 Oklo
#33 David A. Rotsch 2 Uchicago Argonne
#34 Derek Bass 2 Ge-Hitachi Nuclear Energy Americas
#35 Edward J. Lahoda 2 Westinghouse Electric
#36 Evan Thomas Logue 2 Bwxt Isotope Technology Group
#37 Fred D. Lang 2 Exergetic Systems
#38 Fu Li 2 Tsinghua University
#39 Gregory Piefer 2 Shine Technologies
#40 Haitao Wang 2 Samsung
#41 Henry Crichlow 2
#42 Hideyuki Hosokawa 2 Hitachi-Ge Nuclear Energy
#43 Jason Madjdi Amini 2 Ionq
#44 Jason Brown 2 HP
#45 Jeffrey L. Arndt 2 Westinghouse Electric
#46 Jesse R. Cheatham, III 2 Terrapower
#47 Jerry A. Nolen, Jr. 2 Uchicago Argonne
#48 Jeremy Matthew SAGE 2 Ionq
#49 Jeongseog Song 2 Uchicago Argonne
#50 Jorge V. Carvajal 2 Westinghouse Electric
#51 John D. Griffiths 2 Holtec International
#52 John Hanson 2 Oklo
#53 John D. Malloy, III 2 Bwxt Mpower
#54 Joshua G. Richard 2 Oklo
#55 Jonathan Witter 2 Capital One Services
#56 Matthias Brandl 2 Fresenius Medical Care Deutschland Gmbh
#57 Matthew Vernacchia 2
#58 Michael J. Edwards 2 Bwxt Mpower
#59 Michael Lurie GOLDMAN 2 Ionq
#60 Michael D. Heibel 2 Westinghouse Electric
#61 Nathan Graff 2 Oklo
#62 Nobuyuki Ota 2 Hitachi-Ge Nuclear Energy
#63 Patrick Ray McClure 2 Triad National Security
#64 Richard A. Muller 2 Deep Isolation
#65 Robert Stowers Reid 2 Triad National Security
#66 Roger D. Ridgeway 2 Bwxt Mpower
#67 Ryo Hamada 2 Yazaki
#68 Satoshi Oouchi 2 Hitachi-Ge Nuclear Energy
#69 Sergey D. Chemerisov 2 Uchicago Argonne
#70 Shawn C. Stafford 2 Westinghouse Electric
#71 Stephen J. Agace 2 Holtec International
#72 Takashi Oohira 2 Hitachi-Ge Nuclear Energy
#73 Theodore Wyeth 2
#74 Yanfang Liu 2 Shanghai United Imaging Healthcare Co.
#75 Yujie Dong 2 Tsinghua University
#76 Zuoyi Zhang 2 Tsinghua University
#77 Johnathan Mulcahy-Stanislawczyk 1 National Technology & Engineering Solutions Of Sandia
#78 Ryan Nicolas Goodner 1 National Technology & Engineering Solutions Of Sandia
#79 Aleksandr Vladislavovich Dedul′ 1 Joint Stock Company “Akme-Engineering”
#80 Adon Delgado, Jr. 1 GE
#81 ADAM S. GOLDBERG 1 Unknown
#82 Ali A. Abbasi 1 Unknown
#83 Alain Assaf 1 Tae Technologies
#84 Allen A. Beasley 1 Battelle Energy Alliance
#85 Alexei Bylinskii 1
#86 Alexander Creely 1
#87 Alisher DUSPAYEV 1
#88 Alexey Vladimirovich Glebov 1 Giamag Technologies As
#89 Alexander W. Harkness 1 Westinghouse Electric
#90 Aleksandr Khasin 1 Mcd Technologies S.A. R.L.
#91 Aleksandr Klachkov 1
#92 Alexandre MICHAU 1 CEA
#93 Alessandro PANTANO 1 CEA
#94 Aleksandr Mikhailovich Pavlovichev 1
#95 Allen Peterson 1 Infinia
#96 Alexander Pavlovich Ponomarenko 1
#97 Alexey Serov 1 Stc.Unm
#98 Amber Lynn Dagel 1 National Technology & Engineering Solutions Of Sandia
#99 Andrew L. Cote, Sr. 1 Nypro
#100 Anthony DiRisio 1 Eastman Kodak

Top Companies

Rank Company Patents
1 Framatome 9
2 Holtec International 9
3 Westinghouse Electric 8
#4 Ionq 5
#5 Bwxt Mpower 4
#6 Ge-Hitachi Nuclear Energy Americas 4
#7 Oklo 4
#8 Bwxt Advanced Technologies 3
#9 CEA 3
#10 Curium Us 3
#11 Hitachi-Ge Nuclear Energy 3
#12 Infineon Technologies Austria Ag 3
#13 Nuscale Power 3
#14 Quantinuum 3
#15 Sciencons As 3
#16 Shanghai United Imaging Healthcare Co. 3
#17 Tae Technologies 3
#18 Terrapower 3
#19 Uchicago Argonne 3
#20 Abilene Christian University 2
#21 Battelle Energy Alliance 2
#22 Bwxt Isotope Technology Group 2
#23 Carbon Free Holdings 2
#24 National Technology & Engineering Solutions Of Sandia 2
#25 Natura Resources 2
#26 Schott Ag 2
#27 Tsinghua University 2
#28 Unknown 2
#29 3D At Depth 1
#30 Ats 1
#31 Best Theratronics 1
#32 Blue Laser Fusion 1
#33 Brilliant Light Power 1
#34 Bwxt Nuclear Energy 1
#35 Caltech 1
#36 Capsa Solutions Limited 1
#37 Carestream Health 1
#38 Carl Zeiss Smt Gmbh 1
#39 Coldquanta 1
#40 Contemporary Amperex Technology (Hong Kong) Limited 1
#41 Cornell University 1
#42 Friedrich-Alexander-Universität Erlangen-Nürnberg 1
#43 General Atomics 1
#44 Halliburton Energy Services 1
#45 Hamamatsu Photonics K.K. 1
#46 Hefei Institutes Of Physical Sciences, Chinese Academy Of Sciences 1
#47 Imam Mohammad Ibn Saud Islamic University 1
#48 Inentec 1
#49 Joint Stock Company “Akme-Engineering” 1
#50 Joint Stock Company “Atomenergoproekt” 1
#51 Jubilant Draximage 1
#52 Kepco Nuclear Fuel Co. 1
#53 Korea Atomic Energy Research Institute 1
#54 MIT 1
#55 National Institute Of Advanced Industrial Science And Technology 1
#56 Neuboron Therapy System 1
#57 New Mexico Tech University Research Park 1
#58 Northstar Medical Technologies 1
#59 Orano Ds—Démantèlement Et Services 1
#60 Orano Med 1
#61 Riken 1
#62 Science And Innovations—Nuclear Industry Scientific Development, Private Enterprise 1
#63 Sck.Cen 1
#64 Shanghai Nuclear Engineering Research & Design Institute Co. 1
#65 Shine Technologies 1
#66 Sigray 1
#67 Société Technique Pour L'Energie Atomique 1
#68 Soochow University 1
#69 Southern University Of Science And Technology 1
#70 State Atomic Energy Corporation “Rosatom” Acts On Behalf Of The Russian Federation 1
#71 Texas Thorium 1
#72 The Aerospace 1
#73 NASA 1
#74 The University Of Chicago 1
#75 Tokamak Energy 1
#76 Triad National Security 1
#77 University Of Pittsburgh 1
#78 University Of Tsukuba 1
#79 Unm Rainforest Innovations 1
#80 Ut-Battelle 1
#81 Viken Detection 1
#82 Xi'An Jiaotong University 1
#83 Huawei 1