Détention brevets de la classe G01V 3/38

Brevets de cette classe: 2003

Historique des publications depuis 10 ans

178
201
157
154
141
127
126
101
85
24
2015 2016 2017 2018 2019 2020 2021 2022 2023 2024

Propriétaires principaux

Proprétaire
Total
Cette classe
Halliburton Energy Services, Inc.
20165
452
Schlumberger Technology Corporation
9690
224
Schlumberger Canada Limited
6913
132
Services Petroliers Schlumberger
5426
109
Schlumberger Technology B.v.
4951
99
Baker Hughes Incorporated
5689
83
Saudi Arabian Oil Company
11322
63
Schlumberger Holdings Limited
2947
56
Prad Research and Development Limited
2696
55
Baker Hughes, a GE Company, LLC
2171
35
ExxonMobil Upstream Research Company
2525
22
Landmark Graphics Corporation
1526
18
Chevron U.S.A. Inc.
3774
16
Seescan, Inc.
457
15
Institute of Geology and Geophysics, Chinese Academy of Sciences
276
14
Minelab Electronics Pty Limited
122
14
PGS Geophysical AS
547
14
Geoquest Systems B.V.
584
12
Technological Resources Pty. Limited
444
12
Baker Hughes Oilfield Operations, LLC
1885
12
Autres propriétaires 546