Topic leaderboard

D21F

Paper-making machines & methods

Ranked by the PatentIndex Score — a 1–99 percentile within D21F · public-visibility date · generated 2026

Rising· last 2 yrs

Inventors whose newest D21F patents became public in the last 2 years — the current frontier

  1. 199Byrd Tyler Miller, Iv49 patents · 532 citations
  2. 296John Allen Manifold39 patents · 515 citations
  3. 392John Leslie Brent, Jr.34 patents · 356 citations
  4. 488James Michael Singer28 patents · 352 citations
  5. 583Angela Marie Leimbach19 patents · 172 citations
  6. 679Katie Kristine Glass9 patents · 117 citations
  7. 775Gustav Andre Mellin9 patents · 110 citations
  8. 871Taras Z. Andrukh18 patents · 115 citations
  9. 967Andrew Forester19 patents · 118 citations
  10. 1063James Faufau16 patents · 112 citations
  11. 1158Ikuo Ueda25 patents · 229 citations
  12. 1254Phillip Macdonald8 patents · 64 citations
  13. 1350Douglas Jay Barkey21 patents · 127 citations
  14. 1446Shigenobu Fujisawa8 patents · 100 citations
  15. 1542Justin S. Pence12 patents · 48 citations
  16. 1638Jeffrey Glen Sheehan18 patents · 43 citations
  17. 1733Johann Boeck17 patents · 74 citations
  18. 1829Anthony Paul Bankemper10 patents · 22 citations
  19. 1925Joseph K. Baker6 patents · 28 citations
  20. 2021Robert Eberhardt20 patents · 106 citations
  21. 2117Charles W. Colman6 patents · 12 citations
  22. 2213Jake Neal5 patents · 10 citations
  23. 238Francis P. Abuto6 patents · 7 citations
  24. 244Peter Wallace3 patents · 39 citations
  25. 251Calvin Hayden3 patents · 53 citations

Active· last 5 yrs

Sustained D21F output across the last 5 years

  1. 199Mark Alan Burazin67 patents · 6,608 citations
  2. 296Thomas Hensler8 patents · 1,899 citations
  3. 392Osman Polat33 patents · 3,454 citations
  4. 488Frank D. Harper54 patents · 3,259 citations
  5. 583Hung Liang Chou33 patents · 1,338 citations
  6. 679Michael Gomer Stelljes27 patents · 996 citations
  7. 775Byrd Tyler Miller, Iv49 patents · 532 citations
  8. 871Karthik Ramaratnam15 patents · 409 citations
  9. 967Shane Ervin Hayes14 patents · 404 citations
  10. 1063David William Cabell7 patents · 648 citations
  11. 1158Peter Allen19 patents · 836 citations
  12. 1254Kevin Ward25 patents · 908 citations
  13. 1350Dean J. Baumgartner17 patents · 497 citations
  14. 1446Daniel H. Sze40 patents · 587 citations
  15. 1542Anders Linden14 patents · 574 citations
  16. 1638Kevin Joseph Vogt15 patents · 423 citations
  17. 1733Kay Rokman15 patents · 526 citations
  18. 1829John Allen Manifold39 patents · 515 citations
  19. 1925Xiaolin Fan20 patents · 210 citations
  20. 2021John Leslie Brent, Jr.34 patents · 356 citations
  21. 2117James Michael Singer28 patents · 352 citations
  22. 2213Seppo Taipale14 patents · 339 citations
  23. 238Angela Marie Leimbach19 patents · 172 citations
  24. 244Katie Kristine Glass9 patents · 117 citations
  25. 251Richard Louis Underhill14 patents · 234 citations

All-time canon

Career PatentIndex Score in D21F

  1. 199Mark Alan Burazin67 patents · 6,608 citations
  2. 296Theodore Edwin Farrington, Jr.14 patents · 3,920 citations
  3. 392Michael Alan Hermans72 patents · 8,371 citations
  4. 488Fung-Jou Chen33 patents · 6,165 citations
  5. 583Michael John Rekoske14 patents · 2,788 citations
  6. 679Robert J. Makolin11 patents · 2,463 citations
  7. 775Kristin Ann Goerg9 patents · 2,097 citations
  8. 871Julia Smith Bahlman8 patents · 1,896 citations
  9. 967Dean Van Phan35 patents · 5,359 citations
  10. 1063Glenn David Boutilier19 patents · 3,168 citations
  11. 1158Kai-Feng Chiu13 patents · 2,970 citations
  12. 1254Thomas Hensler8 patents · 1,899 citations
  13. 1350Stephen J. Mccullough43 patents · 2,842 citations
  14. 1446Guy H. Super39 patents · 2,414 citations
  15. 1542Osman Polat33 patents · 3,454 citations
  16. 1638Frank D. Harper54 patents · 3,259 citations
  17. 1733Dean Van Phan13 patents · 1,963 citations
  18. 1829Richard Joseph Kamps13 patents · 2,403 citations
  19. 1925Bernhardt E. Kressner11 patents · 1,784 citations
  20. 2021Anthony O. Awofeso33 patents · 2,127 citations
  21. 2117Thomas N. Kershaw27 patents · 1,668 citations
  22. 2213John H. Dwiggins26 patents · 1,812 citations
  23. 238Janice G. Nielsen5 patents · 837 citations
  24. 244Frank Stephen Hada41 patents · 2,577 citations
  25. 251David Mark Rasch6 patents · 1,243 citations
90–99 field-defining50–89 strong<50 emergingearned by citationsfrom family breadth