Topic leaderboard

F04F

Pumping fluid by direct contact & siphons

Ranked by the PatentIndex Score — a 1–99 percentile within F04F · public-visibility date · generated 2026

Rising· last 2 yrs

Inventors whose newest F04F patents became public in the last 2 years — the current frontier

  1. 199Keith S. Attee12 patents · 117 citations
  2. 296Maurice Perlman13 patents · 117 citations
  3. 392Alexander Patrick Theodossiou13 patents · 134 citations
  4. 488Azam Mihir Thatte13 patents · 38 citations
  5. 583Ho-Young Cho12 patents · 45 citations
  6. 679Mudasir Ahmad6 patents · 21 citations
  7. 775Timothy Neil Jukes6 patents · 23 citations
  8. 871Hoojin Kim24 patents · 12 citations
  9. 967Yongmin Kim24 patents · 12 citations
  10. 1063Philip Tennison Reilly10 patents · 21 citations
  11. 1158Chiyoung Choi22 patents · 10 citations
  12. 1254Hyungho Park23 patents · 10 citations
  13. 1350James Elliott Mclean, Jr.8 patents · 14 citations
  14. 1446Haein Jung15 patents · 9 citations
  15. 1542Jaehyuk Jung18 patents · 9 citations
  16. 1638Kidong Kim17 patents · 8 citations
  17. 1733Seokho Choi23 patents · 8 citations
  18. 1829Andreas Dreiss7 patents · 15 citations
  19. 1925Brian Lee Moffat3 patents · 9 citations
  20. 2021Garth Alexander Sheldon-Coulson3 patents · 9 citations
  21. 2117Gordon Ray Whipple5 patents · 3 citations
  22. 2213John Troy Kraczek5 patents · 3 citations
  23. 238Paul James Freeman5 patents · 3 citations
  24. 244Jeffrey Butler Cunnane4 patents · 12 citations
  25. 251Neil Havrilla5 patents · 7 citations

Active· last 5 yrs

Sustained F04F output across the last 5 years

  1. 199James Dyson28 patents · 1,223 citations
  2. 296Leif J. Hauge11 patents · 461 citations
  3. 392Jeremy Grant Martin32 patents · 551 citations
  4. 488Reiner Liebing5 patents · 273 citations
  5. 583Farshad Ghasripoor25 patents · 284 citations
  6. 679Keith S. Attee12 patents · 117 citations
  7. 775Maurice Perlman13 patents · 117 citations
  8. 871Prem Krish13 patents · 201 citations
  9. 967Kevin L. Newcomer10 patents · 195 citations
  10. 1063David Deloyd Anderson15 patents · 140 citations
  11. 1158Alexander Patrick Theodossiou13 patents · 134 citations
  12. 1254Neil Andrew Stewart9 patents · 65 citations
  13. 1350Steven Eduard Peet10 patents · 60 citations
  14. 1446Baji Gobburi5 patents · 52 citations
  15. 1542James Edward Mccrone4 patents · 144 citations
  16. 1638Keith Hampton19 patents · 54 citations
  17. 1733Azam Mihir Thatte13 patents · 38 citations
  18. 1829Alexander Stuart Knox5 patents · 49 citations
  19. 1925Ho-Young Cho12 patents · 45 citations
  20. 2021Rod Shampine8 patents · 34 citations
  21. 2117Mudasir Ahmad6 patents · 21 citations
  22. 2213Charles Edward Pouget5 patents · 26 citations
  23. 238Kiyoshi Kurihara6 patents · 52 citations
  24. 244Timothy Neil Jukes6 patents · 23 citations
  25. 251Thomas Greer Duvall6 patents · 25 citations

All-time canon

Career PatentIndex Score in F04F

  1. 199Peter David Gammack37 patents · 1,583 citations
  2. 296James Dyson28 patents · 1,223 citations
  3. 392Frederic Nicolas17 patents · 540 citations
  4. 488Shigekazu Nagai10 patents · 495 citations
  5. 583Kevin John Simmonds17 patents · 448 citations
  6. 679Leif J. Hauge11 patents · 461 citations
  7. 775Akio Saitoh7 patents · 293 citations
  8. 871Nicholas Gerald Fitton15 patents · 355 citations
  9. 967Dan Gilmore6 patents · 261 citations
  10. 1063Jeremy Grant Martin32 patents · 551 citations
  11. 1158Reiner Liebing5 patents · 273 citations
  12. 1254Peter Tell17 patents · 347 citations
  13. 1350Yoji Ise7 patents · 265 citations
  14. 1446Farshad Ghasripoor25 patents · 284 citations
  15. 1542Keith S. Attee12 patents · 117 citations
  16. 1638Maurice Perlman13 patents · 117 citations
  17. 1733Prem Krish13 patents · 201 citations
  18. 1829Hiroshi Matsushima6 patents · 219 citations
  19. 1925Richard L. Stover5 patents · 184 citations
  20. 2021Timothy S. Lucas6 patents · 204 citations
  21. 2117Tom Vallance Hamilton Crawford7 patents · 343 citations
  22. 2213Kevin L. Newcomer10 patents · 195 citations
  23. 238John Scott Sutton6 patents · 151 citations
  24. 244John W. Erickson5 patents · 163 citations
  25. 251Hirotsugu Takeuchi14 patents · 258 citations
90–99 field-defining50–89 strong<50 emergingearned by citationsfrom family breadth