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Patent Leaderboard
USPTO Patent Rankings Data through Dec 31, 2025
Home › Technologies › Locks keys and doors

Locks keys and doors Patent Leaders in 2017 2017

Primary CPC class E05 · Section E

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 1,223 patents in 2025.peak 1,2231996: 592 patents19961997: 594 patents1998: 697 patents1999: 687 patents19992000: 769 patents2001: 636 patents2002: 746 patents20022003: 799 patents2004: 658 patents2005: 621 patents20052006: 681 patents2007: 589 patents2008: 563 patents20082009: 545 patents2010: 617 patents2011: 634 patents20112012: 763 patents2013: 893 patents2014: 925 patents20142015: 847 patents2016: 840 patents2017: 931 patents20172018: 825 patents2019: 1,155 patents2020: 1,106 patents20202021: 964 patents2022: 1,117 patents2023: 1,052 patents20232024: 1,190 patents2025: 1,223 patents2025

Top Inventors

Rank ↑ Inventor ↕ Patents ↕ Primary Company ↕
1 Thorsten Bendel 13 Kiekert Ag
2 David Rosales 8 Brose Schließsysteme Gmbh & Co. Kommanditgesellschaft
3 Michael Wittelsbuerger 7 Brose Schliessysteme
#4 Gary E. Tagtow 6 Amesbury Group
#5 Rajesh K. Patel 6 Ford
#6 Bruce Hagemeyer 5 Amesbury Group
#7 James D. Ohl 5 Schlage Lock Company
#8 Kosta Papanikolaou 5 Ford
#9 Adam M. Litwinski 4 Schlage Lock Company
#10 Armin Handke 4 Kiekert Ag
#11 Christian Barmscheidt 4 Kiekert Ag
#12 Claus Topfer 4 Kiekert Ag
#13 Dan Raap 4 Amesbury Group
#14 Debraj Dey 4 Nissan North America
#15 Dilip Bangaru 4 Schlage Lock Company
#16 Luciano Bacchetti 4 In & Tec S.R.L.
#17 Masayuki Matsushita 4 Hi-Lex Controls
#18 Michael Scholz 4 Kiekert Ag
#19 Scott B. Lowder 4 Sargent Manufacturing
#20 Stepan Hanke 4 Brose Schliessysteme
#21 Sundar Raj Dore Vasudevan 4 Schlage Lock Company
#22 Timothy J. Potter 4 Ford
#23 William B. Ainley 4 Schlage Lock Company
#24 Aaron P. McKibben 3 Schlage Lock Company
#25 Allen Rickenbaugh 3 Amesbury Group
#26 Andreas Beck 3 Huf Huelsbeck & Fuerst GmbH & Co. KG
#27 Barry G. Lawrence 3 Hughes Supply Company Of Thomasville
#28 Brian Edward Walls 3 Schlage Lock Company
#29 Dieter Ramsauer 3 Dirak Dieter Ramsauer Konstruktionselemente Gmbh
#30 Gregory A. Header 3 Unknown
#31 John Wayne Jaranson 3 Ford
#32 Koichi Nagata 3 Aisin Seiki Kabushiki Kaisha
#33 Larry Dean Elie 3 Ford
#34 Leslie Ho Leung Chow 3 —
#35 Leo Lai 3 Yifeng Manufacturing Co.
#36 Matthew S. Hill 3 Carrier
#37 Masayuki Nomura 3 Aisin Seiki Kabushiki Kaisha
#38 Meir Avganim 3 —
#39 Nathan H. DeBoer 3 Marvin Lumber And Cedar Company
#40 Naoki Hanaki 3 Mitsui Kinzoku Act
#41 Naoya Seto 3 Mitsui Kinzoku Act
#42 Peter Malenkovic 3 Schlage Lock Company
#43 Robert J. Hunt 3 Kiekert Ag
#44 Shih Yu Thomas Cheng 3 August Home
#45 Stuart C. Salter 3 Ford
#46 Takeshi Katsuda 3 Aisin Seiki Kabushiki Kaisha
#47 Takeshi Nishikibe 3 Aisin Seiki Kabushiki Kaisha
#48 Takumi Niwa 3 Aisin Seiki Kabushiki Kaisha
#49 Tatsuya Shimizu 3 Sae Magnetics (H.K.)
#50 Tien-Kao Liu 3 Federal Lock Co.
#51 Toshihiro Kitamura 3 Aisin Seiki Kabushiki Kaisha
#52 Tracy Lammers 3 Amesbury Group
#53 Yao-Kun Yang 3 Wistron
#54 Abdul Baki 2 IBM
#55 Adam Kuenzi 2 Carrier
#56 Adam Wojdyla 2 The Braun
#57 Aimone Balbo Di Vinadio 2 —
#58 Alexander Hellwig 2 Dormakaba Deutschland Gmbh
#59 Andrew E. Blank 2 Uusi
#60 Andre Bultschnieder 2 Simonswerk Gmbh
#61 Anthony John Clark 2 D & D Group Pty
#62 Andrew S. Geraci 2 Sargent Manufacturing
#63 Andreas Niegeloh 2 Huf Huelsbeck & Fuerst GmbH & Co. KG
#64 Antonio Rocci 2 U-Shin Italia S.P.A
#65 Ankit Shah 2 Architectural Builders Hardware Mfg.
#66 Andy Wu 2 Quanzhou Yida Home Appliance Industry Co.
#67 An Zhang 2 Digilock Asia
#68 Barbara J. Pickar 2 Trimark
#69 Bernhard Garthe 2 Abus August Bremicker Söhne Kg
#70 Brad J. Van Ruiswyk 2 Brunswick
#71 Byungman Yoon 2 Unknown
#72 Chung-Hsien Hsieh 2 Htc
#73 Chao-Chi Lin 2 Leohab Enterprise Co.
#74 Chun-Chiang Wang 2 King Slide Works Co.
#75 Christopher C. Wegner 2 The Braun
#76 Claus Toepfer 2 Kiekert Ag
#77 Cornel Lewis Gardner 2 Ford
#78 David McAllister Bradley 2 Uatc
#79 Darren C. Eller 2 Sargent Manufacturing
#80 Daniel H. Kindstrand 2 Schlage Lock Company
#81 Danhui Luo 2 Tyco Fire & Security Gmbh
#82 David Bruce Miller 2 Schlage Lock Company
#83 David Purdy 2 Uber Technologies
#84 David W. Shank 2 Uusi
#85 Dennis McGregor 2 Hardware Resources
#86 Douglas G. Broadhead 2 Warren Industries
#87 Donald P. Iacovoni 2 Ford
#88 Donald Eugene Irwin 2 United States Postal Service
#89 Dominik Scheffler 2 Hanchett Entry Systems
#90 Duane O. Hall 2 Won-Door
#91 Edward J. Cox, II 2 Uusi
#92 Edwin Grubel 2 Fulterer Gesellschaft Mbh
#93 E. Carl Goodman 2 Won-Door
#94 E. Erik Timothy 2 Nationwide Industries
#95 Eric Delbos 2 Ratier Figeac
#96 Eric Allyn VandenBrink 2 Adac Plastics
#97 Eunsook Lee 2 Unknown
#98 Evan Earl Evans 2 Schlage Lock Company
#99 Gareth Kenworthy 2 Warren Industries
#100 Glenn McGinnis 2 Infinium Technology

Top Companies

Rank ↑ Company ↕ Patents ↕
1 Ford 34
2 Kiekert Ag 31
3 Schlage Lock Company 29
#4 Aisin Seiki Kabushiki Kaisha 18
#5 Hyundai Motor 17
#6 General Motors 13
#7 Unknown 11
#8 Huf Huelsbeck & Fuerst GmbH & Co. KG 10
#9 Toyota 10
#10 Mitsui Kinzoku Act 9
#11 Brose Schliessysteme 8
#12 Honda Motor Co. 8
#13 Amesbury Group 7
#14 Sargent Manufacturing 7
#15 Dorma Deutschland Gmbh 6
#16 Hi-Lex Controls 6
#17 Inteva Products 6
#18 Kabushiki Kaisha Honda Lock 6
#19 Abloy Oy 5
#20 Julius Blum Gmbh 5
#21 Nissan North America 5
#22 Brose Fahrzeugteile Gmbh & Co. Kg, Hallstadt 4
#23 Bsh Hausgeräte Gmbh 4
#24 Lenovo (Beijing) Limited 4
#25 Simonswerk Gmbh 4
#26 Spectrum Brands 4
#27 The Chamberlain Group 4
#28 The Eastern 4
#29 Truth Hardware 4
#30 Uber Technologies 4
#31 Samsung 4
#32 Adac Plastics 3
#33 Alpha 3
#34 Architectural Builders Hardware Mfg. 3
#35 Audi Ag 3
#36 August Home 3
#37 Federal Lock Co. 3
#38 First Dome 3
#39 Hardware Resources 3
#40 Illinois Tool Works 3
#41 I-Tek Metal Mfg. Co. 3
#42 Magna Closures 3
#43 Marvin Lumber And Cedar Company 3
#44 Mitsubishi Electric 3
#45 Nabtesco 3
#46 Omron Automotive Electronics Co. 3
#47 Overhead Door 3
#48 The Braun 3
#49 Trimark 3
#50 Tyco Fire & Security Gmbh 3
#51 Utc Fire & Security Americas 3
#52 Won-Door 3
#53 Yifeng Manufacturing Co. 3
#54 IBM 3
#55 Abus August Bremicker Söhne Kg 2
#56 Acer Incorporated 2
#57 Aisin Technical Center Of America 2
#58 Asmo Co. 2
#59 Assa Abloy Ab 2
#60 Assa Abloy Entrance Systems Ab 2
#61 Assa Abloy Sicherheitstechnik Gmbh 2
#62 Ballogy 2
#63 Barrette Outdoor Living 2
#64 B/E Aerospace 2
#65 Brose Fahrzeugteile Gmbh & Co. Kommanditgesellschaft, Hallstadt 2
#66 Brunswick 2
#67 Bsh Home Appliances 2
#68 Bunka Shutter Co. 2
#69 Creative Law Enforcement Resources 2
#70 D & D Group Pty 2
#71 Digilock Asia 2
#72 D. La Porte Söhne Gmbh 2
#73 Dr. Ing. H.C. F. Porsche Ag 2
#74 Dura Operating 2
#75 Fujitsu Limited 2
#76 Fulterer Gesellschaft Mbh 2
#77 Grass Gmbh 2
#78 Grg Banking Equipment Co. 2
#79 Hanchett Entry Systems 2
#80 Hartwell 2
#81 Hettich-Oni Gmbh & Co. Kg 2
#82 Hoppe Holding Ag 2
#83 Hyundai Mobis Co. 2
#84 Hyundai Translead 2
#85 In & Tec S.R.L. 2
#86 Interlock Usa 2
#87 Janus International Group 2
#88 Kem Hongkong Limited 2
#89 King Slide Technology Co. 2
#90 King Slide Works Co. 2
#91 Kyocera Document Solutions 2
#92 Leohab Enterprise Co. 2
#93 Lisi Aerospace 2
#94 Nationwide Industries 2
#95 Nishikawa Rubber Co. 2
#96 Novomatic Ag 2
#97 Paccar 2
#98 Piolax 2
#99 Pyeong Hwa Automotive Co. 2
#100 Ratier Figeac 2