Détention brevets de la classe G01V 3/28

Brevets de cette classe: 762

Historique des publications depuis 10 ans

83
74
68
38
35
14
34
12
18
2
2017 2018 2019 2020 2021 2022 2023 2024 2025 2026

Propriétaires principaux

Proprétaire
Total
Cette classe
Halliburton Energy Services, Inc.
21109
286
Schlumberger Technology Corporation
11202
91
Baker Hughes Incorporated
5148
38
Saudi Arabian Oil Company
13764
34
Schlumberger Technology B.v.
5242
24
Services Petroliers Schlumberger
5915
24
Schlumberger Canada Limited
7479
23
Schlumberger Holdings Limited
2767
21
Prad Research and Development Limited
2687
20
Baker Hughes, a GE Company, LLC
2103
18
Well Resolutions Technology
39
17
Oliden Technology, LLC
46
10
Baker Hughes Oilfield Operations, LLC
2389
10
Baker Hughes Holdings LLC
2994
9
Hunting Titan, Inc.
240
5
Probe Technology Services, Inc.
35
5
Smith International, Inc.
708
4
Aramco Services Company
4135
4
China National Petroleum Corporation
484
4
China Petroleum & Chemical Corporation
1976
4
Autres propriétaires 111