Détention brevets de la classe G01V 3/30

Brevets de cette classe: 1084

Historique des publications depuis 10 ans

63
69
85
52
58
40
41
59
60
0
2017 2018 2019 2020 2021 2022 2023 2024 2025 2026

Propriétaires principaux

Proprétaire
Total
Cette classe
Halliburton Energy Services, Inc.
21122
276
Schlumberger Technology Corporation
11129
145
Schlumberger Canada Limited
7460
73
Services Petroliers Schlumberger
5901
67
Schlumberger Technology B.v.
5228
65
Saudi Arabian Oil Company
13708
60
Baker Hughes Incorporated
5162
38
Baker Hughes Oilfield Operations, LLC
2403
25
Schlumberger Holdings Limited
2769
21
Baker Hughes, a GE Company, LLC
2101
20
Prad Research and Development Limited
2687
17
Aramco Services Company
4125
15
Well Resolutions Technology
39
14
Oliden Technology, LLC
46
12
China National Petroleum Corporation
481
9
Baker Hughes Holdings LLC
2997
9
Chevron U.S.A. Inc.
4013
8
Bench Tree Group, LLC
64
7
China Petroleum & Chemical Corporation
1968
7
ExxonMobil Upstream Research Company
2371
7
Autres propriétaires 189