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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 3,238 patents in 2019.peak 3,2381996: 634 patents19961997: 557 patents1998: 796 patents1999: 838 patents19992000: 974 patents2001: 1,102 patents2002: 1,020 patents20022003: 1,014 patents2004: 1,046 patents2005: 877 patents20052006: 1,183 patents2007: 1,049 patents2008: 1,132 patents20082009: 1,088 patents2010: 1,656 patents2011: 1,495 patents20112012: 1,736 patents2013: 1,847 patents2014: 2,135 patents20142015: 2,318 patents2016: 2,454 patents2017: 2,612 patents20172018: 2,721 patents2019: 3,238 patents2020: 3,076 patents20202021: 2,876 patents2022: 2,754 patents2023: 2,767 patents20232024: 2,676 patents2025: 2,630 patents2025

Top Inventors

Rank Inventor Patents Primary Company
1 Michael Linley Fripp 37 Halliburton Energy Services
2 Aaron W. Logan 27 Evolution Engineering
3 David A. Switzer 20 Evolution Engineering
#4 William Mark Richards 20 Halliburton Energy Services
#5 Roger L. Schultz 19 Thru Tubing Solutions
#6 John T. Hardesty 18 Geodynamics
#7 Justin C. Logan 17 Evolution Engineering
#8 Danny E. Scott 16 Baker Hughes Holdings
#9 Brock Watson 15 Thru Tubing Solutions
#10 Dennis P. Nguyen 13 Cameron International
#11 Zachary Ryan Murphree 13 Halliburton Energy Services
#12 Zachary William Walton 13 Halliburton Energy Services
#13 Anthony A. DiGiovanni 12 Baker Hughes Holdings
#14 David S. Wesson 12 Geodynamics
#15 Jørgen Hallundbæk 12 Welltec A/S
#16 Burkay Donderici 11 Halliburton Energy Services
#17 Philip D. Nguyen 11 Halliburton Energy Services
#18 Robello Samuel 11 Landmark Graphics
#19 James Dan Vick, Jr. 10 Halliburton Energy Services
#20 Jean-Marc Lopez 10 Halliburton Energy Services
#21 Jili Liu 10 Evolution Engineering
#22 Thomas Jules Frosell 10 Halliburton Energy Services
#23 Andrew M. Ferguson 9 Thru Tubing Solutions
#24 Charles S. Yeh 9 ExxonMobil
#25 Philip M. Snider 9 Geodynamics
#26 Richard Thomas Hay 9 Halliburton Energy Services
#27 Stephen Michael Greci 9 Halliburton Energy Services
#28 Steven R. Radford 9 Baker Hughes Holdings
#29 Zhiyue Xu 9
#30 Bennett M. Richard 8 Baker Hughes Holdings
#31 Donald G. Kyle 8 Halliburton Energy Services
#32 Duke VanLue 8 Downhole Technology
#33 Jason Allen Hradecky 8 Impact Selector International
#34 Jeremy Richard Angelle 8 Frank'S International
#35 Rene Schulz 8 Baker Hughes Holdings
#36 Ryan Thomas Bowley 8 Tescom
#37 YingQing Xu 8
#38 Dale E. Jamison 7 Halliburton Energy Services
#39 Henning Rahn 7 Baker Hughes Holdings
#40 Jean Buytaert 7 Antelope Oil Tool & Mfg.
#41 Matthew J. Krueger 7
#42 Mingdong Xu 7 Evolution Engineering
#43 Nicholas J. Lyons 7 Baker Hughes Holdings
#44 Pavlin B. Entchev 7 ExxonMobil
#45 Paul D. Ringgenberg 7 Halliburton Energy Services
#46 Robert Buda 7 Baker Hughes Holdings
#47 Stephan Mueller 7 Baker Hughes Holdings
#48 Volker Peters 7 Baker Hughes Holdings
#49 David L. Ford 6 Vetco Gray
#50 Detlev Benedict 6 Baker Hughes Holdings
#51 Edward T. Wood 6 Baker Hughes Holdings
#52 Gary P. Funkhouser 6 Halliburton Energy Services
#53 Gregory Scott Cunningham 6 Halliburton Energy Services
#54 Gustav Edward Lange 6 Halliburton Energy Services
#55 Ingo Roders 6 Baker Hughes Holdings
#56 Ira Eugene Hining 6 Antelope Oil Tool & Mfg.
#57 James C. Doane 6 Baker Hughes Holdings
#58 James A. Rollins 6 Geodynamics
#59 Jili Liu 6
#60 Jimmie R. Williamson, Jr. 6 Halliburton Energy Services
#61 Juan Carlos Flores 6
#62 Luke William Holderman 6 Halliburton Energy Services
#63 Mark S. Zediker 6 Foro Energy
#64 Michael S. Bittar 6 Halliburton Energy Services
#65 Michael H. Johnson 6 Baker Hughes Holdings
#66 Pierre-Yves Corre 6 Schlumberger Technology
#67 Raymond Hofman 6 Peak Completion Technologies
#68 Shaohua Kevin Zhou 6 Siemens Healthcare Limited
#69 Steve Rosenblatt 6 Baker Hughes Holdings
#70 William Sloane Muscroft 6 Peak Completion Technologies
#71 Aaron James Bonner 5 Halliburton Energy Services
#72 Albert W. Chau 5 Merlin Technology
#73 Albert C. Odell, II 5 Weatherford Technology Holdings
#74 Aniruddha D. Gadre 5 Vetco Gray
#75 Andrew Gorrara 5 Nabors Lux 2 Sarl
#76 Antonio C. Ruffo 5 Baker Hughes Holdings
#77 Ashish Gupta 5 Nabors Drilling Technologies Usa
#78 Brian O. Faircloth 5 Foro Energy
#79 Bruce McGarian 5 Smith International
#80 Bruce Edward Scott 5 Halliburton Energy Services
#81 Brian Wright 5 Harris
#82 Christopher L. Drenth 5 Longyear Tm
#83 Cyrus Barimani 5 Wirtgen Gmbh
#84 David S. Bishop 5 Baker Hughes Holdings
#85 Daryl L. Grubb 5 Foro Energy
#86 David R. Hall 5 Hall Labs
#87 Daniel Jon Themig 5 Packers Plus Energy Service
#88 Daniel Winslow 5 Halliburton Energy Services
#89 Edward J. O'Malley 5 Baker Hughes Holdings
#90 Fraser A. Wheeler 5 Halliburton Energy Services
#91 Gavin Gaw-Wae Lee 5 Evolution Engineering
#92 Jack Gammill Clemens 5 Halliburton Energy Services
#93 James Randolph Lovorn 5 Halliburton Energy Services
#94 Jason C. Mailand 5 Baker Hughes Holdings
#95 Jared Oehring 5 U.S. Well Services
#96 Jim B. Surjaatmadja 5 Halliburton Energy Services
#97 John C. Gano 5 Halliburton Energy Services
#98 Jonathan Ryan Prill 5 National Oilwell Varco
#99 Joop Roodenburg 5 Itrec B.V.
#100 John S. Sladic 5 Weatherford Technology Holdings

Top Companies

Rank Company Patents
1 Halliburton Energy Services 405
2 Baker Hughes Holdings 290
3 Schlumberger Technology 188
#4 Weatherford Technology Holdings 71
#5 Cameron International 62
#6 National Oilwell Varco 40
#7 Saudi Arabian Oil 34
#8 ExxonMobil 31
#9 Chevron 28
#10 Evolution Engineering 27
#11 GE 27
#12 Onesubsea Ip Uk Limited 24
#13 Thru Tubing Solutions 20
#14 Geodynamics 19
#15 Smith International 18
#16 Shell Oil Compny 17
#17 Statoil Petroleum As 17
#18 Unknown 17
#19 Frank'S International 14
#20 Joy Mm Delaware 13
#21 Landmark Graphics 13
#22 Welltec A/S 13
#23 Phillips Petroleum 12
#24 Sandvik Intellectual Property Ab 11
#25 Tescom 11
#26 Us Synthetic 11
#27 Vetco Gray 9
#28 Antelope Oil Tool & Mfg. 8
#29 Downhole Technology 8
#30 Fmc Kongsberg Subsea As 8
#31 Hydril Usa Distribution 8
#32 Impact Selector International 8
#33 Merlin Technology 8
#34 Caterpillar 8
#35 Canrig Drilling Technology 7
#36 Element Six Limited 7
#37 M-I L.L.C. 7
#38 Peak Completion Technologies 7
#39 The Charles Machine Works 7
#40 Vermeer Manufacturing 7
#41 China Petroleum & Chemical 6
#42 Dril-Quip 6
#43 Intellectual Ventures 6
#44 Harris 6
#45 Packers Plus Energy Service 6
#46 Petrowell Limited 6
#47 Wirtgen Gmbh 6
#48 China University Of Petroleum (East China) 5
#49 Fmc 5
#50 Foro Energy 5
#51 Halliburton Manufacturing And Services Limited 5
#52 Itrec B.V. 5
#53 Longyear Tm 5
#54 Mako Rentals 5
#55 Managed Pressure Operations Pte. 5
#56 Owen Oil Tools Lp 5
#57 U.S. Well Services 5
#58 Cenovus Energy 4
#59 Datainfocom Usa 4
#60 Element Six Abrasives S.A. 4
#61 Ifp Energies Nouvelles 4
#62 Key Energy Services 4
#63 KFUPM 4
#64 Kureha 4
#65 Maersk Drilling A/S 4
#66 Mhwirth As 4
#67 Nabors Drilling Technologies Usa 4
#68 Nabors Industries 4
#69 Optasense Holdings Limited 4
#70 Sc Asset 4
#71 Scientific Drilling International 4
#72 Sensor Developments As 4
#73 Smart Drilling And Completion 4
#74 Superior Energy Services 4
#75 Tam International 4
#76 Total Sa 4
#77 Varel International Ind., L.L.C. 4
#78 West Drilling Products As 4
#79 World Energy Systems Incorporated 4
#80 Advanced Oilfield Innovations (Aoi) 3
#81 Aps Technology 3
#82 Atlas Copco Rock Drills Ab 3
#83 Bauer Spezialtiefbau Gmbh 3
#84 Blackhawk Specialty Tools 3
#85 Blue Spark Energy 3
#86 Bly Ip 3
#87 Centergenics 3
#88 China University Of Mining And Technology 3
#89 Dover Bmcs Acquisition 3
#90 Ecolab Usa 3
#91 Energy Recovery 3
#92 Eni S.P.A. 3
#93 Epic Lift Systems 3
#94 Extreme Technologies 3
#95 Globaltech Corporation Pty 3
#96 Husky Oil Operations Limited 3
#97 Interwell Technology As 3
#98 Katch Kan Holdings 3
#99 Kennametal 3
#100 Komatsu 3