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F21Y

Indexing scheme for form of light sources

Ranked by the PatentIndex Score — a 1–99 percentile within F21Y · public-visibility date · generated 2026-07-19

top 25 per window · public-visibility date

Rising· last 2 yrs

Inventors whose newest F21Y patents became public in the last 2 years — the current frontier

199Alin Fecioru12 patents · 798 citations
296Carl Prevatte12 patents · 798 citations
392David Gomez12 patents · 798 citations
488David Kneeburg12 patents · 798 citations
583Salvatore Bonafede12 patents · 798 citations
679Raymond L. Sharrah63 patents · 1,801 citations
775Louis Lerman84 patents · 1,315 citations
871Robert V. Steele46 patents · 1,084 citations
967Wilson Dau59 patents · 793 citations
1063Michael D. Danesh37 patents · 1,585 citations
1158George Lerman36 patents · 563 citations
1254Jacqueline Teng36 patents · 563 citations
1350Tomas Mollnow9 patents · 923 citations
1446Aiming Xiong153 patents · 1,156 citations
1542Derek E. Logan15 patents · 705 citations
1638Ellis Yan10 patents · 875 citations
1733Terence Yeo35 patents · 530 citations
1829Bruce Quaal22 patents · 665 citations
1925Voravit Puvanakijjakorn25 patents · 270 citations
2021Richard S. Belliveau24 patents · 853 citations
2117Brandon S. Mundell8 patents · 418 citations
2213Richard E. Feinbloom35 patents · 487 citations
238Shozo Oshio18 patents · 383 citations
244Takahiro Ishisone18 patents · 290 citations
251Srinath K. Aanegola13 patents · 397 citations

Active· last 5 yrs

Sustained F21Y output across the last 5 years

199John Ivey81 patents · 3,872 citations
296Alin Fecioru12 patents · 798 citations
392Carl Prevatte12 patents · 798 citations
488David Gomez12 patents · 798 citations
583David Kneeburg12 patents · 798 citations
679Salvatore Bonafede12 patents · 798 citations
775Raymond L. Sharrah63 patents · 1,801 citations
871Michael V. Recker15 patents · 850 citations
967Louis Lerman84 patents · 1,315 citations
1063Robert V. Steele46 patents · 1,084 citations
1158Tseng-Lu Chien156 patents · 2,582 citations
1254Scott D. Johnston13 patents · 993 citations
1350Steve T. Kondo13 patents · 993 citations
1446Wilson Dau59 patents · 793 citations
1542Brian D. Ogonowsky20 patents · 860 citations
1638Michael D. Danesh37 patents · 1,585 citations
1733George Lerman36 patents · 563 citations
1829Jacqueline Teng36 patents · 563 citations
1925Neal R. Verfuerth32 patents · 1,320 citations
2021Robert D. Galli51 patents · 1,559 citations
2117Tomas Mollnow9 patents · 923 citations
2213Steven Walter Pyshos29 patents · 612 citations
238Aiming Xiong153 patents · 1,156 citations
244Anthony Verdes15 patents · 944 citations
251Basar Erdener21 patents · 315 citations

All-time canon

Career PatentIndex Score in F21Y

199George G. Mueller39 patents · 22,198 citations
296John K. Roberts18 patents · 5,305 citations
392Jean C. Raymond21 patents · 1,315 citations
488Jos Timmermans21 patents · 1,315 citations
583Joseph S. Stam8 patents · 2,363 citations
679Frederick T. Bauer7 patents · 2,179 citations
775Brian Roberge12 patents · 2,798 citations
871Charles T. Bourn13 patents · 1,730 citations
967Gary A. Lebens13 patents · 1,730 citations
1063Tetsushi Tamura19 patents · 2,601 citations
1158John Ivey81 patents · 3,872 citations
1254Simon H. A. Begemann8 patents · 2,198 citations
1350Michael D. Pashley10 patents · 2,535 citations
1446Thomas Marshall10 patents · 2,535 citations
1542Desaraju V. Varaprasad11 patents · 748 citations
1638Ian A. Mccabe11 patents · 748 citations
1733Lois Bauer5 patents · 1,246 citations
1829Alin Fecioru12 patents · 798 citations
1925Carl Prevatte12 patents · 798 citations
2021David Gomez12 patents · 798 citations
2117David Kneeburg12 patents · 798 citations
2213Salvatore Bonafede12 patents · 798 citations
238Tatsumi Setomoto17 patents · 1,041 citations
244Raymond L. Sharrah63 patents · 1,801 citations
251John C. Dinenna16 patents · 1,098 citations

90–99 field-defining50–89 strong<50 emergingearned by citationsfrom family breadth