Patent Leaderboard
USPTO Patent Rankings Data through Dec 31, 2025
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Buildings and construction Patent Leaders in 2021 2021

Primary CPC class E04 · 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 1,806 patents in 2020.peak 1,8061996: 853 patents19961997: 958 patents1998: 1,124 patents1999: 1,149 patents19992000: 1,157 patents2001: 1,239 patents2002: 1,079 patents20022003: 1,013 patents2004: 953 patents2005: 874 patents20052006: 794 patents2007: 629 patents2008: 602 patents20082009: 799 patents2010: 1,246 patents2011: 1,151 patents20112012: 1,307 patents2013: 1,545 patents2014: 1,674 patents20142015: 1,642 patents2016: 1,555 patents2017: 1,519 patents20172018: 1,577 patents2019: 1,739 patents2020: 1,806 patents20202021: 1,559 patents2022: 1,410 patents2023: 1,520 patents20232024: 1,625 patents2025: 1,604 patents2025

Top Inventors

Rank ↑ Inventor ↕ Patents ↕ Primary Company ↕
1 Darko Pervan 12 Valinge Innovation Ab
2 Christopher Patrick Kasprzak 9 Owens Corning Intellectual Capital
3 William Edwin Smith 9 Owens Corning Intellectual Capital
#4 Carmen Anthony LaTorre 8 Owens Corning Intellectual Capital
#5 David Michael Ploense 8 Owens Corning Intellectual Capital
#6 Edward R. Harrington 8 Owens Corning Intellectual Capital
#7 Jacob Paul Honsvick 8 Owens Corning Intellectual Capital
#8 Daniel James Buckwalter 7 Owens Corning Intellectual Capital
#9 Donald Anthony Pilz 7 California Expanded Metal Products
#10 Jonathan Ross Davis 7 Owens Corning Intellectual Capital
#11 Kevin T. Burt 7 Fortress Iron, Lp
#12 Laurand Henry Lewandowski 7 Owens Corning Intellectual Capital
#13 Laurent Meersseman 7 Flooring Industies Limited, Sarl
#14 Matthew Carlyle Sherstad 7 Fortress Iron, Lp
#15 Scott W. Schweiger 7 Owens Corning Intellectual Capital
#16 Ben Mou 6 Qingdao University Of Technology
#17 Felix L. Sorkin 6 Generate Technologies
#18 Husain Abbas 6 King Saud University
#19 Jan Eddy De Rick 6 Flooring Industies Limited, Sarl
#20 Jian He 6 BOE
#21 Mark Cappelle 6 Flooring Industies Limited, Sarl
#22 Steven R. Robinson 6 Schul International Co.
#23 Tarek H. Almusallam 6 King Saud University
#24 Yousef A. Al-Salloum 6 King Saud University
#25 Yuanru Sun 6 Zhejiang Jiansheng Leisure Products Co.
#26 Arlan Collins 5 Innovative Building Technologies
#27 Christian Foerg 5 Hilti Aktiengesellschaft
#28 Eric Claeys 5 Unknown
#29 Mark C. Carter 5 International E-Z Up
#30 Manfred Klein 5 Hilti Aktiengesellschaft
#31 Mark Woerman 5 Innovative Building Technologies
#32 Michael J. Recker 5 Meadow Burke
#33 Pieter Devos 5 Flooring Industies Limited, Sarl
#34 Shay Witelson 5 Maytronics
#35 Thomas Luc Martine BAERT 5 Champion Link International
#36 Arndt Andresen 4 Hilti Aktiengesellschaft
#37 Benjamin J. Folkersen 4 Roofers' Advantage Products
#38 Geoff T. Luczycki 4 Fortress Iron, Lp
#39 Gregory F. Jacobs 4 Certainteed
#40 Hui Li 4 Rigel Pharmaceuticals
#41 Jonny E. Folkersen 4 Roofers' Advantage Products
#42 Justin Montesalvo 4 Patriot Campers Holdings Pty
#43 Kevin B. Flatt 4 Fortress Iron, Lp
#44 Kristof Van Vlassenrode 4 Unilin Bv
#45 Martin Segaert 4 Flooring Industies Limited, Sarl
#46 Michael Hatzinikolas 4 Fero
#47 Michael J. Hubbard 4 Firestone Building Products Company
#48 Paul Stary 4 —
#49 Robert L. Jenkins 4 Certainteed
#50 Salvatore C. Immordino 4 United States Gypsum
#51 Theodore Kalomirakis 4 —
#52 Tom VAN POYER 4 Champion Link International
#53 Aaron Jesiolowski 3 Fortress Iron, Lp
#54 Andrew Gray 3 Wilian Holding
#55 Andreas Lehmann 3 Pathway Ip Sarl
#56 Anders Nilsson 3 Välinge Innovation Ab
#57 Bert W. Elliott 3 Owens Corning Intellectual Capital
#58 Ben Stevens 3 Studco Australia Pty
#59 Bernard Thiers 3 Flooring Industies Limited, Sarl
#60 Bill Witherspoon 3 Emseal Joint Systems
#61 Brian Cecil Stearns 3 Vermont Slate & Copper Services
#62 Christian Boo 3 Valinge Innovation Ab
#63 Charles J. MacKarvich 3 Tie Down
#64 Christopher Michael Schneider 3 Barrette Outdoor Living
#65 Chao Zeng 3 Chengdu Boe Optoelectronics Technology Co.
#66 Clinton D. Bunch 3 Acufloor
#67 David L. Bacon 3 Titan Formwork Systems
#68 David J. Battey 3 Steelcase
#69 David Guy 3 King Technology
#70 David K. Jones 3 Steelcase
#71 David L. Kelly 3 Burke
#72 Davy E. Passucci 3 Paul Kristen
#73 David J. Stucky 3 Certainteed
#74 Donn R. Vermilion 3 —
#75 Dustin M.M. Haddock 3 Rmh Tech
#76 Duck Young Kong 3 Steelcase
#77 Emmet J. Mielbrecht 3 Simpson Strong-Tie Company
#78 Ethan Hanan 3 Aqua Products
#79 Fernando Benjamin Fischmann 3 Crystal Lagoons Technologies
#80 Fonda Crandall 3 —
#81 Frédéric Mayer 3 Alabama Metal Industries
#82 Geoff Gosling 3 Dirtt Environmental Solutions
#83 Giovanni Valli 3 —
#84 Gordon J. Peterson 3 Steelcase
#85 Gregory L. Schafer 3 Tgr Construction
#86 Hans-Jürgen Hannig 3 Akzenta Paneele + Profile Gmbh
#87 Husnu M. Kalkanoglu 3 Certainteed
#88 James M. Benton 3 Simpson Strong-Tie Company
#89 Jason McManus 3 Mbrico
#90 Jeffrey D. Johnson 3 King Technology
#91 Joshua A. Bunch 3 Acufloor
#92 Joseph Crandall 3 —
#93 Johannes Henikl 3 Schwing Gmbh
#94 Kameshwar Durvasula 3 Aqua Products
#95 Karl QUIST 3 Välinge Innovation Ab
#96 Kenneth Robert Kreizinger 3 —
#97 Keith Robert Machin 3 Steelcase
#98 Larry Randall Daudet 3 Simpson Strong-Tie Company
#99 Lawrence J. Grubka 3 Owens Corning Intellectual Capital
#100 Margie A. Beerer 3 Building Materials Investment

Top Companies

Rank ↑ Company ↕ Patents ↕
1 Unknown 31
2 Flooring Industies Limited, Sarl 23
3 Valinge Innovation Ab 18
#4 Certainteed 17
#5 Owens Corning Intellectual Capital 15
#6 Hilti Aktiengesellschaft 12
#7 Simpson Strong-Tie Company 12
#8 Qingdao University Of Technology 8
#9 Awi Licensing 7
#10 California Expanded Metal Products 7
#11 Fortress Iron, Lp 7
#12 Maytronics 7
#13 James Hardie Technology Limited 6
#14 King Saud University 6
#15 Schul International Co. 6
#16 Vkr Holding A/S 6
#17 Zhejiang Jiansheng Leisure Products Co. 6
#18 Zodiac Pool Systems 6
#19 Building Materials Investment 5
#20 Ceraloc Innovation Ab 5
#21 Champion Link International 5
#22 Doka Gmbh 5
#23 Hayward Industries 5
#24 Illinois Tool Works 5
#25 Innovative Building Technologies 5
#26 International E-Z Up 5
#27 Meadow Burke 5
#28 United States Gypsum 5
#29 Bestway Inflatables & Material 4
#30 Certainteed Ceilings 4
#31 Columbia Insurance 4
#32 Fero 4
#33 Firestone Building Products Company 4
#34 Ivc Bv 4
#35 Johns Manville 4
#36 Knauf Gips Kg 4
#37 Max Co. 4
#38 Patriot Campers Holdings Pty 4
#39 Roofers' Advantage Products 4
#40 Usg Interiors 4
#41 IBM 4
#42 Alabama Metal Industries 3
#43 Aquastar Pool Products 3
#44 Barrette Outdoor Living 3
#45 Carefree/Scott Fetzer 3
#46 Crystal Lagoons Technologies 3
#47 Dirtt Environmental Solutions 3
#48 Emseal Joint Systems 3
#49 Katerra 3
#50 King Technology 3
#51 Louisiana-Pacific 3
#52 Makita 3
#53 Mbrico 3
#54 National Nail 3
#55 Paul Kristen 3
#56 Pentair Water Pool And Spa 3
#57 Pmc Industries 3
#58 Rmh Tech 3
#59 Rockwool International A/S 3
#60 Schwing Gmbh 3
#61 Steelcase 3
#62 Studco Australia Pty 3
#63 Sukup Manufacturing 3
#64 Tgr Construction 3
#65 The Boeing 3
#66 Titan Formwork Systems 3
#67 Unilin Bv 3
#68 Wilian Holding 3
#69 Wobben Properties Gmbh 3
#70 Zodiac Pool Care Europe 3
#71 3M 2
#72 Akzenta Paneele + Profile Gmbh 2
#73 Altenloh, Brinck & Co. U.S. 2
#74 Anchor Ring Solutions 2
#75 Anchor Wall Systems 2
#76 Basf Se 2
#77 Beaulieu International Group Nv 2
#78 Beijing University Of Civil Engineering And Architecture 2
#79 Big Time Investment 2
#80 Biondan North America 2
#81 Bond Formwork Systems 2
#82 Certainteed Gypsum 2
#83 Cetres Holdings 2
#84 Cfs Concrete Forming Systems 2
#85 Conxtech 2
#86 Cortex Composites 2
#87 Csr Building Products Limited 2
#88 Daifuku Co. 2
#89 Dal-Tile 2
#90 Distributed Solar Development 2
#91 Ecofasten Solar 2
#92 E-Z Bead 2
#93 Fact Design 2
#94 Fujifilm 2
#95 Garland Industries 2
#96 Georgia Tech Research 2
#97 Hae Kwang Co. 2
#98 Hall Labs 2
#99 Hdt Expeditionary Systems 2
#100 Hunter Douglas Industries B. V. 2