Patent Leaderboard
USPTO Patent Rankings Data through Sept 30, 2025
QU

Quadtech

Rank (All Time): #7,029 of 106,127Top 7%
80 inventors
102 Patents All Time

Top Inventors at Quadtech All Time

Showing 1–50 of 80 inventors

RankNamePatents
1 John C. Seymour 24
2 Ingermar S. d'Agrella 12
2 Michael D. Sisco 12
2 William T. Graushar 12
#5 Karl P. Schaefer 11
#6 Patrick James Noffke 10
#7 Bradly S. Moersfelder 9
#7 Stephen J. Daily 9
#9 Jeffrey W. Sainio 8
#9 Jon Ubert 8
#9 Rick C. Honeck 8
#9 Adam Nelson 8
#13 John M. Neary 6
#13 Mark R. Hansen 6
#15 Eric L. Kuhne 5
#15 Eric C. Pearson 5
#15 Thomas A. Quadracci 5
#18 Bruce A. Reynolds 4
#18 Chia-Lin Chu 4
#18 Richard J. Fox 4
#21 David F. Christofferson 3
#21 Dale Norman Hernke 3
#21 Karl R. Voss 3
#21 Nick R. Schetter 3
#21 Paul James Rick 3
#21 Thomas R. Wickert 3
#21 Alexander Brengauz 3
#28 Carlo Carnelli 2
#28 Dave Christofferson 2
#28 Dennis Sopik 2
#28 Eric Blohm 2
#28 Gary J. Laatsch 2
#28 H. Richard Quadracci 2
#28 Jeffrey Karch 2
#28 Jeffrey P. Rappette 2
#28 Keith A. Tabor 2
#28 Lawrence S. Klaas 2
#28 Patrick Younk 2
#28 Steve J. Lachajewski 2
#28 Thomas A. Halverson 2
#28 Todd J. Dettmering 2
#42 Calvin L. Wade 1
#42 Chris Wendel 1
#42 Craig D. Dewey 1
#42 Craig J. Peglow 1
#42 Darin Chic 1
#42 David Landskron 1
#42 David Mundschau 1
#42 David Quadracci 1
#42 Frank Vroman 1