Patent Leaderboard
USPTO Patent Rankings Data through Sept 30, 2025
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Envirogen — 20 Patents

Rank (All Time): #29,987 of 106,127Top 30%
20 inventors
20 Patents All Time

Top Inventors at Envirogen All Time

Showing 1–20 of 20 inventors

RankNamePatents
1 Robert Jon Steffan 6
2 Michael Arthur Del Vecchio 5
3 Kevin Rock McClay 3
3 Mary F. DeFlaun 3
3 Paul Matthew Sutton 3
3 Robert Loudon 3
#7 Burt D. Ensley 2
#7 Charles Whitman Condee 2
#7 Dennis Wayne Barshter 2
#7 Jennifer Diane Michelson 2
#7 Randi K. Rothmel 2
#7 Ronald Unterman 2
#7 Sam Frisch 2
#14 Brian R. Folsom 1
#14 Michael J. Shannon 1
#14 Raymond Jasienski 1
#14 Samuel Frisch 1
#14 Younghua Yang 1
#14 A. Paul Togna 1
#14 Simon Vainberg 1