Topic leaderboard

B27F

Dovetailed work, slotting & nailing machines

Ranked by the PatentIndex Score — a 1–99 percentile within B27F · public-visibility date · generated 2026

Rising· last 2 yrs

Inventors whose newest B27F patents became public in the last 2 years — the current frontier

  1. 199Darko Pervan47 patents · 2,893 citations
  2. 296Hans-Jürgen Hannig3 patents · 835 citations
  3. 392Yusuke Obuchi10 patents · 27 citations
  4. 488Harrison Grant Meadows5 patents · 16 citations
  5. 583Jason Daryl Hunsinger5 patents · 16 citations
  6. 679Mark Joseph Bellissimo6 patents · 16 citations
  7. 775Stanley Clark Beard, Jr.6 patents · 16 citations
  8. 871Hideto Abe9 patents · 17 citations
  9. 967Masaya Takahashi9 patents · 17 citations
  10. 1063Seiji Nishizawa9 patents · 17 citations
  11. 1158Futoshi Kameda30 patents · 54 citations
  12. 1254Masashi Shimamura4 patents · 1,027 citations
  13. 1350Mace Lombardo4 patents · 0 citations
  14. 1446Arno Mecklenburg2 patents · 4 citations
  15. 1542Tilo Dittrich2 patents · 4 citations
  16. 1638Kurtis D. Scepaniak2 patents · 3 citations
  17. 1733Michael S. Marquette2 patents · 3 citations
  18. 1829Travis M. Marquette2 patents · 3 citations
  19. 1925Takushi Shindo4 patents · 2 citations
  20. 2021Tatsuya Kenjo2 patents · 1 citations
  21. 2117Yu-Chun Liu1 patents · 1 citations
  22. 2213KAMEDA FUTOSHI2 patents · 0 citations
  23. 238SHINDO TAKUSHI2 patents · 0 citations
  24. 244Caleb Robert Boothe1 patents · 0 citations
  25. 251Robert James Hellner1 patents · 0 citations

Active· last 5 yrs

Sustained B27F output across the last 5 years

  1. 199Mark Cappelle56 patents · 4,361 citations
  2. 296Darko Pervan47 patents · 2,893 citations
  3. 392Agne Pålsson11 patents · 630 citations
  4. 488Christian Boo10 patents · 616 citations
  5. 583Mattias Sjostrand7 patents · 582 citations
  6. 679Niclas Hakansson7 patents · 582 citations
  7. 775Kiichi Haramiishi22 patents · 2,380 citations
  8. 871Katsunori Manabe21 patents · 1,724 citations
  9. 967Hans-Jürgen Hannig3 patents · 835 citations
  10. 1063Yusuke Obuchi10 patents · 27 citations
  11. 1158Toshio Shimizu21 patents · 56 citations
  12. 1254Harrison Grant Meadows5 patents · 16 citations
  13. 1350Jason Daryl Hunsinger5 patents · 16 citations
  14. 1446Mark Joseph Bellissimo6 patents · 16 citations
  15. 1542Stanley Clark Beard, Jr.6 patents · 16 citations
  16. 1638Hideto Abe9 patents · 17 citations
  17. 1733Masaya Takahashi9 patents · 17 citations
  18. 1829Seiji Nishizawa9 patents · 17 citations
  19. 1925Futoshi Kameda30 patents · 54 citations
  20. 2021Kazuhiko Kishi11 patents · 33 citations
  21. 2117Manish Kanjee5 patents · 32 citations
  22. 2213Masashi Shimamura4 patents · 1,027 citations
  23. 238Max W. Durney4 patents · 85 citations
  24. 244Jonas Fransson3 patents · 61 citations
  25. 251Jan Eddy De Rick4 patents · 25 citations

All-time canon

Career PatentIndex Score in B27F

  1. 199Mark Cappelle56 patents · 4,361 citations
  2. 296Bernard Thiers51 patents · 4,270 citations
  3. 392Stefan Simon Gustaaf Moriau51 patents · 4,270 citations
  4. 488Darko Pervan47 patents · 2,893 citations
  5. 583Ralf Eisermann5 patents · 1,524 citations
  6. 679Agne Pålsson11 patents · 630 citations
  7. 775Christian Boo10 patents · 616 citations
  8. 871Mattias Sjostrand7 patents · 582 citations
  9. 967Niclas Hakansson7 patents · 582 citations
  10. 1063Toru Yoshie25 patents · 1,863 citations
  11. 1158Kiichi Haramiishi22 patents · 2,380 citations
  12. 1254Katsunori Manabe21 patents · 1,724 citations
  13. 1350Nobuaki Yagi24 patents · 1,743 citations
  14. 1446Kazuo Higuchi15 patents · 1,265 citations
  15. 1542Kenneth M. Grisley11 patents · 388 citations
  16. 1638Takuya Kitamura9 patents · 1,581 citations
  17. 1733Toshiyuki Kanai8 patents · 267 citations
  18. 1829Hiroshi Udagawa11 patents · 352 citations
  19. 1925Naoto Mochizuki18 patents · 370 citations
  20. 2021Clyde R. Fredrickson12 patents · 154 citations
  21. 2117Mark Wismer12 patents · 154 citations
  22. 2213Thomas H. Williams6 patents · 223 citations
  23. 238Masakazu Hiroi4 patents · 678 citations
  24. 244Kunio Ishizaki5 patents · 155 citations
  25. 251Adolfo Castillo14 patents · 199 citations
90–99 field-defining50–89 strong<50 emergingearned by citationsfrom family breadth