VI

Varco I/P

Rank (All Time): #3980 of 106,127Top 4%
168 inventors
191
Patents All Time

Top Inventors at Varco I/P All Time

RankNamePatents
1 Kenneth W. Seyffert 36
2 Guy L. McClung, III 32
3 David Schulte 26
#4 Thomas C. Adams 21
#5 David W. Largent 15
#6 Charles N. Grichar 14
#7 George I. Boyadjieff 14
#8 Robert Folk 13
#9 Steven Lorne Folk 13
#10 George Alexander Burnett 12
#11 David Mason 11
#12 Hans van Rijzingen 11
#13 Frank Benjamin Springett 10
#14 Brian L. Eidem 9
#15 Clive Lam 9
#16 Daniel Juhasz 9
#17 Lawrence E. Wells 8
#18 Eric Scott 7
#19 Herman M. Kamphorst 7
#20 Neil Edward West 7
#21 Richard James Koch 7
#22 William L. Koederitz 7
#23 Anton Krijnen 7
#24 Gustaaf Louis van Wechem 6
#25 Jeffrey E. Walker 6
#26 John E. Goode 6
#27 Kerry Ward 6
#28 Vincent D. Leone 6
#29 Hans Joachim Dietrich Böttger 5
#30 James D. Brugman 5
#31 James Michael McIntosh 5
#32 Lyndon Stone 5
#33 Preston R. Fox 5
#34 Ronald W. Yater 5
#35 Brent Marsh 4
#36 David J. McWhorter 4
#37 David Wood 4
#38 Dean Allen Bennett 4
#39 Eric Trevor Ensley 4
#40 Gary Steven Strong 4
#41 Mallappa Guggari 4
#42 Manfred Worms 4
#43 Padmasiri Daya Seneviratne 4
#44 Robert Parker 4
#45 Troy D. Cain 4
#46 Cliff Swiontek 3
#47 Colin Crabb 3
#48 Hector M. Murray 3
#49 Howard Ervin 3
#50 Jefrey E. Walker 3
#51 Joe Rodney Berry 3
#52 Joseph Gregory Kemper 3
#53 John Kracik 3
#54 John Patrick Wright 3
#55 Kevin McDonough 3
#56 Keith Womer 3
#57 Reinhold Kammann 3
#58 Ronaldus Roling 3
#59 Subrata Mitra 3
#60 William Christian Herben 3
#61 Bernd Helmut Dobberstein 2
#62 Bob DePont 2
#63 Brett Gregory Wallihan 2
#64 Cornelis Wilhelmus Jacobus de Laat 2
#65 David W. Martin 2
#66 David W. McCulloch 2
#67 Denzal Wayne Van Winkle 2
#68 Donald L. Jones 2
#69 Haynes Smith 2
#70 Helmut Knapwost 2
#71 Hubert Frank Baker 2
#72 Ivan Iankov 2
#73 James Adams 2
#74 James E. Lynch 2
#75 Johannes Wilhelmus Henricus van Rijzingen 2
#76 Joseph C. Winkler 2
#77 Kent Hulick 2
#78 Mike Schats 2
#79 Neil Herst 2
#80 Norman Padolino 2
#81 Pieter Dekker 2
#82 Rene Mulder 2
#83 Richard M. Ward 2
#84 Robert Norris 2
#85 Svein Stubstad 2
#86 Thomas Robert Larson 2
#87 Thomas Kilpatrick McLaughlin 2
#88 Albert Patrick Jozef Maria de Pont 2
#89 Alan Randall Lucas 2
#90 Antonio Manocchio 2
#91 Bastiaan De Jong 1
#92 Barry Lynn Sorteberg 1
#93 Brent S. Lim 1
#94 Bruce Prior 1
#95 Bradford R. Wood 1
#96 C. Randall Thomas 1
#97 Carl R. Torres, Jr. 1
#98 Cecil Lee 1
#99 Charles N. Gridhar 1
#100 Cliff Gaddis 1