Détention brevets de la classe E21B 34/08

Brevets de cette classe: 1413

Historique des publications depuis 10 ans

69
72
84
97
108
119
80
68
70
5
2017 2018 2019 2020 2021 2022 2023 2024 2025 2026

Propriétaires principaux

Proprétaire
Total
Cette classe
Halliburton Energy Services, Inc.
21107
359
Schlumberger Technology Corporation
11266
70
Baker Hughes Oilfield Operations, LLC
2402
66
Saudi Arabian Oil Company
13839
61
Baker Hughes Incorporated
5131
52
Schlumberger Canada Limited
7487
43
Weatherford Technology Holdings, LLC
2032
43
Schlumberger Technology B.v.
5242
37
Services Petroliers Schlumberger
5921
36
Statoil Petroleum AS
497
20
Baker Hughes, a GE Company, LLC
2101
20
Swellfix UK Limited
58
18
Schlumberger Holdings Limited
2755
17
Prad Research and Development Limited
2685
17
Flowco Production Solutions, LLC
63
15
Baker Hughes Holdings LLC
2988
15
Floway Innovations Inc.
14
14
Aramco Services Company
4154
13
ExxonMobil Upstream Research Company
2359
13
BJ Energy Solutions, LLC (formerly TES Asset Acquisition, LLC)
222
12
Autres propriétaires 472