Patent Leaderboard
USPTO Patent Rankings
Data through Dec 31, 2025
Search
Companies
Inventors
Cities
States
All Time
2025
2024
2023
2022
2021
2020
2019
2018
2017
2016
2015
2014
2013
2012
2011
2010
2009
2008
2007
2006
2005
2004
2003
2002
2001
2000
1999
1998
1997
1996
1995
1994
1993
1992
1991
1990
1989
1988
1987
1986
1985
1984
1983
1982
1981
1980
Home
›
Companies
›
Dowell Schlumberger Incorporated
DI
Dowell Schlumberger Incorporated
— 128 Patents
Rank
(All Time):
#5,709
of
106,120
Top 6%
148
inventors
128
Patents All Time
Top Inventors at Dowell Schlumberger Incorporated
All Time
Showing
1–50
of
148
inventors
Rank
Name
Patents
1
Robert M. Sorem
11
2
David Milton Eslinger
9
2
Richard M. Hodge
9
#4
Donald C. Cameron
7
#5
Wayne W. Frenier
6
#6
Bart Thomeer
5
#7
Clare H. Kucera
4
#7
Erik Nelson
4
#7
William R. McIntire
4
#10
Annie Audibert
3
#10
Harold Dean Brannon
3
#10
Jean-Francois Argillier
3
#10
Joseph D. Scranton
3
#10
Kay E. Cawiezel
3
#10
Kenneth H. Nimerick
3
#10
Louise Bailey
3
#10
Paul Reid
3
#10
Philippe Parcevaux
3
#10
Vernon G. Constien
3
#20
Augdon John Sampa
2
#20
Bernard Montaron
2
#20
Charles E. Bannister
2
#20
Claude T. Copeland
2
#20
Curtis L. Boney
2
#20
Curtis W. Crowe
2
#20
Derrel G. Gurley
2
#20
Ervin Randermann, Jr.
2
#20
Fred M. Winn, Jr.
2
#20
Gregory Kubala
2
#20
Howard L. McGill
2
#20
James W. Martin
2
#20
James S. McMillan
2
#20
Jean-Yves Mioque
2
#20
Keng Seng Chan
2
#20
Laurent E. Muller
2
#20
Milton T. King
2
#20
Paul Buisine
2
#20
Rudiger Oberste-Padtberg
2
#20
Sandra E. Baranet
2
#20
Stanley B. McConnell
2
#20
Tommy E. Hudson
2
#20
Warren M. Zingg
2
#20
Weldon Kennedy
2
#44
Patrick Sault
1
#44
R. Lemanczyk
1
#44
Janet Gulbis
1
#44
Victoria R. Lopp
1
#44
Charles M. Maddin
1
#44
Willis C. Frison
1
#44
Mohamed Zerhboub
1
1
2
3
Next »
Related Companies
Cidra
128
Ems-Inventa Ag
128
Shin Yeh Enterprise Co.
128
Copal Company Limited
128
Reliance Electric Industrial
128
Tandy
128
The Gates Rubber
128
Suzuki Jidosha Kogyo
128
Repligen
128