Patent Leaderboard
USPTO Patent Rankings Data through Sept 30, 2025
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Calgon Carbon

Rank (All Time): #5,696 of 106,127Top 6%
102 inventors
128 Patents All Time

Top Inventors at Calgon Carbon All Time

Showing 1–50 of 102 inventors

RankNamePatents
1 Richard A. Hayden 29
2 Walter G. Tramposch 17
3 Michael Greenbank 12
3 Thomas M. Matviya 12
#5 Nicholas R. Pollack 11
#6 David T. Doughty 9
#6 Robert H. Vaughn 9
#8 Chen-Chou Chiang 6
#8 Richard Mimna 6
#8 Robert F. Sutt, Jr. 6
#11 Jason P. Mazzoccoli 5
#11 Richard W. Farmer 5
#11 Ryan W. Walker 5
#11 Toan Vo 5
#15 Bertrand W. Dussert 4
#15 Keith G. Bircher 4
#15 Michael R. Rosene 4
#15 Thomas Anthony Ryan 4
#19 James P. Markowitz 3
#19 John W. Cobes, III 3
#19 Paul E. Vargas 3
#19 Rebecca L. DISTEFANO 3
#19 Russell C. Wooten 3
#24 Brad Kevin Ahlgren 2
#24 Charles B. Snyder 2
#24 David L. Fair 2
#24 Elad Shabtai 2
#24 Franck Michel Honore 2
#24 Gina L. McNamara 2
#24 Harry Sharrock 2
#24 Ismail Fawaz 2
#24 James R. Bolton 2
#24 James D. McNamara 2
#24 Jerald L. Mestemaker 2
#24 K. Raman Venkatesh 2
#24 Matthew Adomaitis 2
#24 Mark A. Bollinger 2
#24 Michael Lutz 2
#24 Neal Megonnell 2
#24 Netar P. Wadhwa 2
#24 R. D. Samuel Stevens 2
#24 Robert Gebhard 2
#24 Steven L. BUTTERWORTH 2
#24 Susan L. Kovacic 2
#24 William J. Aldridge 2
#24 William J. Knebel 2
#24 Andrew N. Andrascik 2
#48 Aya Benzaki 1
#48 B. R. Thakker 1
#48 Bill Sotirakos 1