Patent holdings for IPC class G01V 3/38

Total number of patents in this class: 2213

10-year publication summary

157
154
141
127
127
106
99
89
80
64
2017 2018 2019 2020 2021 2022 2023 2024 2025 2026

Principal owners for this class

Owner
All patents
This class
Halliburton Energy Services, Inc.
21284
484
Schlumberger Technology Corporation
11924
263
Schlumberger Canada Limited
7621
147
Services Petroliers Schlumberger
6033
124
Schlumberger Technology B.v.
5299
106
Baker Hughes Incorporated
4897
77
Saudi Arabian Oil Company
14349
76
Schlumberger Holdings Limited
2675
55
Prad Research and Development Limited
2649
55
Baker Hughes, a GE Company, LLC
2048
35
Institute of Geology and Geophysics, Chinese Academy of Sciences
358
29
ExxonMobil Upstream Research Company
2288
21
Geoquest Systems B.V.
886
20
Landmark Graphics Corporation
1497
18
Chevron U.S.A. Inc.
4166
18
Seescan, Inc.
573
18
Minelab Electronics Pty Limited
125
16
Technological Resources Pty. Limited
441
13
PetroChina Company Limited
887
12
Reeves Wireline Technologies Limited
55
11
Other owners 615