Détention brevets de la classe G01V 3/28

Brevets de cette classe: 765

Historique des publications depuis 10 ans

83
74
68
38
35
14
34
12
18
5
2017 2018 2019 2020 2021 2022 2023 2024 2025 2026

Propriétaires principaux

Proprétaire
Total
Cette classe
Halliburton Energy Services, Inc.
21154
286
Schlumberger Technology Corporation
11436
92
Baker Hughes Incorporated
5069
37
Saudi Arabian Oil Company
13937
34
Schlumberger Technology B.v.
5267
24
Services Petroliers Schlumberger
5971
24
Schlumberger Canada Limited
7552
23
Schlumberger Holdings Limited
2744
21
Prad Research and Development Limited
2680
20
Baker Hughes, a GE Company, LLC
2101
18
Well Resolutions Technology
39
17
Oliden Technology, LLC
46
10
Baker Hughes Oilfield Operations, LLC
2429
10
Baker Hughes Holdings LLC
2982
9
Hunting Titan, Inc.
239
5
Probe Technology Services, Inc.
35
5
Smith International, Inc.
700
4
Aramco Services Company
4168
4
China National Petroleum Corporation
524
4
China Petroleum & Chemical Corporation
2026
4
Autres propriétaires 114