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Patent Leaderboard
USPTO Patent Rankings Data through Dec 31, 2025
Home › Technologies › Electric power systems

Electric power systems Patent Leaders All Time

Primary CPC class H02 · Section H

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 8,200 patents in 2019.peak 8,2001996: 1,600 patents19961997: 1,825 patents1998: 2,419 patents1999: 2,516 patents19992000: 2,564 patents2001: 2,636 patents2002: 2,734 patents20022003: 2,550 patents2004: 3,013 patents2005: 2,559 patents20052006: 2,920 patents2007: 2,582 patents2008: 2,657 patents20082009: 3,280 patents2010: 3,881 patents2011: 4,095 patents20112012: 4,439 patents2013: 4,940 patents2014: 5,417 patents20142015: 5,861 patents2016: 6,611 patents2017: 7,514 patents20172018: 7,517 patents2019: 8,200 patents2020: 7,270 patents20202021: 6,839 patents2022: 6,895 patents2023: 6,426 patents20232024: 7,099 patents2025: 7,218 patents2025

Top Inventors

Rank ↑ Inventor ↕ Patents ↕ Primary Company ↕
1 Ta-Yung Yang 245 System General
2 Yoshihito Asao 222 Mitsubishi Electric
3 Thomas J. Gretz 213 Arlington Industries
#4 Lieyi Fang 209 On-Bright Electronics (Shanghai) Co.
#5 Michael A. Leabman 168 Energous
#6 Balu Balakrishnan 153 Power Integrations
#7 Alex B. Djenguerian 148 Power Integrations
#8 Alex Horng 147 Sunonwealth Electric Machine Industry Co.
#9 Jialiang Zhang 144 OPPO
#10 Jeffrey P. Baldwin 138 Hubbell Incorporated
#11 Yuki Takahashi 130 Denso
#12 Gregory I. Rozman 129 Hamilton Sundstrand
#13 Shin Kusase 129 Denso
#14 Hatem Zeine 124 Ossia
#15 Michael W. Degner 121 Ford
#16 Guy Sella 120 Solaredge Technologies
#17 Patrizio Vinciarelli 119 Vlt
#18 Tai-Her Yang 112 Unknown
#19 Yoav Galin 112 Solaredge Technologies
#20 Makoto Taniguchi 110 Denso
#21 Robert Gregory Wagoner 110 GE
#22 Marcus J. Shotey 108 Hubbell Incorporated
#23 David Giuliano 105 Psemi
#24 Dianbo Fu 103 Futurewei Technologies
#25 Alberto Peralta 98 Nucurrent
#26 Lior Handelsman 97 Solaredge Technologies
#27 David W. Baarman 95 Access Business Group International
#28 Masaya Inoue 95 Mitsubishi Electric
#29 Tatsuya Hosotani 95 Murata Manufacturing Co.
#30 Yongcheol PARK 95 LG
#31 Katsumi Adachi 92 Mitsubishi Electric
#32 Yue Li 92 Johnson Electric S.A.
#33 Hengchun Mao 90 AT&T
#34 Chun-Kil Jung 89 GE
#35 David Michael Hugh Matthews 89 Power Integrations
#36 Kirk Neet 89 Borgwarner
#37 Meir Adest 87 Solaredge Technologies
#38 Gregory Szczeszynski 86 Psemi
#39 Kyung-Woo Lee 86 Samsung
#40 Sang Wook Kwon 86 Samsung
#41 Se-Ho Park 86 Samsung
#42 Ilan Yoscovich 85 Solaredge Technologies
#43 Chandra S. Namuduri 84 General Motors
#44 Mark Telefus 83 Flextronics Ap
#45 Fred C. Lee 82 Virginia Tech Intellectual Properties
#46 Lubin Mao 82 Aac Technologies Pte.
#47 John L. Melanson 81 Cirrus Logic
#48 Atsushi Umeda 80 Denso
#49 Tsutomu Shiga 80 Denso
#50 Yuzuru Suzuki 79 Minebea Co.
#51 Claudio Adragna 78 Stmicroelectronics Sa
#52 Chen Zhao 77 Silergy Semiconductor Technology (Hangzhou)
#53 Takashi Suzuki 77 Blackberry Limited
#54 Tzachi Glovinsky 77 Solaredge Technologies
#55 Kang-Ho Byun 76 Samsung
#56 Lixiang Wei 76 Rockwell Automation
#57 Steven E. Schulz 76 General Motors
#58 Nam Yun Kim 75 Samsung
#59 Heping Dai 74 Futurewei Technologies
#60 Robert Louis Steigerwald 74 GE
#61 Chen Tian 73 OPPO
#62 Russel J. Kerkman 73 Rockwell Automation
#63 Satoru Akutsu 73 Mitsubishi Electric
#64 Silva Hiti 73 General Motors
#65 Atsushi Oohashi 72 Mitsubishi Electric
#66 Leif Lund 72 Power Integrations
#67 David Reginald Trainer 71 Rolls-Royce Plc
#68 Jacek F. Gieras 71 Hamilton Sundstrand
#69 Krzysztof W. Korcz 71 Hubbell Incorporated
#70 Amir Fishelov 70 Solaredge Technologies
#71 Arthur B. Odell 70 Power Integrations
#72 Jianping Ying 70 Delta Electronics
#73 Patrick L. Chapman 70 Sunpower
#74 Shinji Nishimura 70 Mitsubishi Electric
#75 Wen-Shi Huang 70 Delta Electronics
#76 Hiroyuki Akita 69 Mitsubishi Electric
#77 Brian A. Welchko 68 General Motors
#78 Masahiko Fujita 68 Mitsubishi Electric
#79 Steven J. Johnson 68 Hubbell Incorporated
#80 Young Ho Ryu 68 Samsung
#81 Edmund O. Schweitzer, III 67 Schweitzer Engineering Laboratories
#82 Gerald Deboy 67 Infineon Technologies Austria Ag
#83 Praveen Jain 67 Sparq Systems
#84 Alireza Fatemi 66 General Motors
#85 Einar Vaughn Larsen 65 GE
#86 Fumio Tajima 65 Hitachi
#87 Kazunori Tanaka 65 Mitsubishi Electric
#88 Ole K. Nilssen 65 Unknown
#89 Hiroki Aso 64 Mitsubishi Electric
#90 Kesatoshi Takeuchi 64 Seiko Epson
#91 Meir Gazit 64 Solaredge Technologies
#92 Benjamim Tang 63 Infineon Technologies Austria Ag
#93 Deepakraj M. Divan 63 Georgia Tech Research
#94 Hiroshi Kanno 63 Panasonic
#95 Lowell L. Wood, JR. 63 The Invention Science Fund I
#96 Roderick A. Hyde 63 Intellectual Ventures
#97 Yoshitaka Iwaji 63 Hitachi
#98 Zaki Moussaoui 63 Apple
#99 Khwaja M. Rahman 62 General Motors
#100 Masashi Nakamura 62 Mitsubishi Electric

Top Companies

Rank ↑ Company ↕ Patents ↕
1 Mitsubishi Electric 3,953
2 GE 3,931
3 Samsung 2,463
#4 Siemens Aktiengesellschaft 2,223
#5 Denso 2,222
#6 Hitachi 1,597
#7 Texas Instruments 1,492
#8 Toyota 1,424
#9 Robert Bosch Gmbh 1,376
#10 Kabushiki Kaisha Toshiba 1,364
#11 Panasonic 1,316
#12 Canon 1,302
#13 Sumitomo Electric Industries 1,018
#14 General Motors 987
#15 Honda Motor Co. 942
#16 Delta Electronics 927
#17 Unknown 913
#18 LG 895
#19 Hamilton Sundstrand 878
#20 Stmicroelectronics Sa 806
#21 Apple 789
#22 Rohm Co. 747
#23 IBM 742
#24 Fuji Electric Co. 720
#25 Sony 713
#26 Abb Schweiz Ag 698
#27 Nidec 689
#28 Eaton 676
#29 Westinghouse Electric 676
#30 Yazaki 646
#31 Honeywell 639
#32 Fanuc 618
#33 Rockwell Automation 618
#34 Power Integrations 608
#35 Ford 591
#36 Huawei 591
#37 onsemi 578
#38 Lg Innotek Co. 572
#39 Hubbell Incorporated 550
#40 Murata Manufacturing Co. 547
#41 Abb Technology Ag 546
#42 Intel 546
#43 Sumitomo Wiring Systems 529
#44 Infineon Technologies Ag 512
#45 Hyundai Motor 508
#46 Infineon Technologies Austria Ag 506
#47 Motorola 468
#48 Richtek Technology 442
#49 Black & Decker 438
#50 Seiko Epson 429
#51 The Boeing 427
#52 AT&T 425
#53 Eaton Intelligent Power Limited 419
#54 Fujitsu Limited 401
#55 Sanyo Electric Co. 394
#56 Qualcomm 387
#57 Foxconn 383
#58 Asmo Co. 381
#59 Emerson Electric 376
#60 Yaskawa Electric 374
#61 Nissan Motor Co. 373
#62 Nec 353
#63 Ricoh Company 342
#64 Sundstrand 338
#65 Minebea Co. 333
#66 Silergy Semiconductor Technology (Hangzhou) 321
#67 RTX (Raytheon) 315
#68 Nxp B.V. 312
#69 Intersil Americas 301
#70 U.S. Philips 301
#71 Daikin Industries 290
#72 Lsis Co. 288
#73 Toshiba Mitsubishi-Electric Industrial Systems 285
#74 Thomas & Betts International 284
#75 Delta Electronics (Shanghai) Co. 282
#76 Hitachi Automotive Systems 278
#77 Schweitzer Engineering Laboratories 263
#78 Valeo Equipements Electriques Moteur 263
#79 Tdk 262
#80 Makita 261
#81 Sanken Electric Co. 260
#82 HP 259
#83 Renesas Electronics 258
#84 Square D 257
#85 Solaredge Technologies 256
#86 Kia Motors 245
#87 Dell Products 244
#88 International Rectifier 241
#89 Omron 237
#90 Caterpillar 236
#91 Abb Research 231
#92 Dialog Semiconductor (Uk) Limited 231
#93 Astec International Limited 229
#94 ITRI 229
#95 Seiko Instruments 228
#96 Milwaukee Electric Tool 227
#97 Regal Beloit America 225
#98 Chengdu Monolithic Power Systems Co. 221
#99 Johnson Electric S.A. 219
#100 Autonetworks Technologies 218