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

Research-Cottrell

Rank (All Time): #16,921 of 106,127Top 20%
37 inventors
38 Patents All Time

Top Inventors at Research-Cottrell All Time

Showing 1–37 of 37 inventors

RankNamePatents
1 Dennis J. Helfritch 5
1 Paul L. Feldman 5
3 Robert J. Gleason 4
#4 Frederick E. Hankins 3
#4 Marcel R. Lefevre 3
#4 Asim B. Ray 3
#7 Dennis H. Sapp 2
#7 Edward L. Biedell 2
#7 Philip Efthimion 2
#7 Robert J. Ferb 2
#7 William Andrews 2
#12 Bruce Weinstein 1
#12 Chin T. Sui 1
#12 David W. Stackhouse 1
#12 David Anthony Wagner 1
#12 Eng J. Chou 1
#12 Franz Kallinger 1
#12 Gary James Grieco 1
#12 James W. Robinson 1
#12 John R. Bush 1
#12 Krishnaswamy Sampathkumar 1
#12 Mark Richman 1
#12 Paul E. Cooke 1
#12 Richard S. Atkins 1
#12 Richard T. Riehl 1
#12 Steven J. Bortz 1
#12 Stephen C. Heidl 1
#12 William D. Byrd 1
#12 Robert E. DuBrock, Jr. 1
#12 Harold E. Van Hoesen 1
#12 Peter P. Bibbo 1
#12 Richard Jakoplic 1
#12 John W. Podlenski 1
#12 Donald J. Kohout 1
#12 John H. Umberger 1
#12 Stephen J. Kohke 1
#12 Anthony M. DePalma 1