Patent holdings for IPC class G01V 1/28

Total number of patents in this class: 3956

10-year publication summary

199
174
215
159
184
144
159
188
148
18
2017 2018 2019 2020 2021 2022 2023 2024 2025 2026

Principal owners for this class

Owner
All patents
This class
Schlumberger Canada Limited
7550
407
Schlumberger Technology Corporation
11404
302
Saudi Arabian Oil Company
13921
272
Chevron U.S.A. Inc.
4075
191
WesternGeco L.L.C.
557
180
ExxonMobil Upstream Research Company
2347
162
Services Petroliers Schlumberger
5966
159
Halliburton Energy Services, Inc.
21153
149
Geco Technology B.V.
346
130
Schlumberger Technology B.v.
5263
113
Geoquest Systems B.V.
839
97
CGG Services SA
431
95
Landmark Graphics Corporation
1509
93
ConocoPhillips Company
1700
74
BP Corporation North America Inc.
745
65
Aramco Services Company
4164
59
PGS Geophysical AS
529
55
Prad Research and Development Limited
2681
49
WesternGeco Seismic Holdings Limited
81
46
Schlumberger Holdings Limited
2751
39
Other owners 1219