Détention brevets de la classe E21B 34/08

Brevets de cette classe: 1400

Historique des publications depuis 10 ans

66
69
72
84
97
108
119
80
68
67
2016 2017 2018 2019 2020 2021 2022 2023 2024 2025

Propriétaires principaux

Proprétaire
Total
Cette classe
Halliburton Energy Services, Inc.
21078
358
Schlumberger Technology Corporation
11054
67
Baker Hughes Oilfield Operations, LLC
2390
63
Saudi Arabian Oil Company
13656
59
Baker Hughes Incorporated
5175
52
Weatherford Technology Holdings, LLC
2033
44
Schlumberger Canada Limited
7432
42
Schlumberger Technology B.v.
5223
36
Services Petroliers Schlumberger
5884
35
Statoil Petroleum AS
510
20
Baker Hughes, a GE Company, LLC
2106
20
Swellfix UK Limited
57
18
Schlumberger Holdings Limited
2790
17
Prad Research and Development Limited
2687
17
Flowco Production Solutions, LLC
65
16
Baker Hughes Holdings LLC
3002
15
Floway Innovations Inc.
14
14
Aramco Services Company
4095
13
ExxonMobil Upstream Research Company
2379
13
BJ Energy Solutions, LLC (formerly TES Asset Acquisition, LLC)
218
12
Autres propriétaires 469