Détention brevets de la classe E21B 34/08

Brevets de cette classe: 1346

Historique des publications depuis 10 ans

79
76
82
91
109
121
146
94
67
6
2016 2017 2018 2019 2020 2021 2022 2023 2024 2025

Propriétaires principaux

Proprétaire
Total
Cette classe
Halliburton Energy Services, Inc.
20438
334
Schlumberger Technology Corporation
10263
65
Saudi Arabian Oil Company
12446
57
Baker Hughes Oilfield Operations, LLC
2128
55
Baker Hughes Incorporated
5504
53
Weatherford Technology Holdings, LLC
2109
46
Schlumberger Canada Limited
7154
42
Schlumberger Technology B.v.
5075
36
Services Petroliers Schlumberger
5633
35
Statoil Petroleum AS
541
22
Baker Hughes, a GE Company, LLC
2138
20
Schlumberger Holdings Limited
2867
17
Prad Research and Development Limited
2696
17
Swellfix UK Limited
54
17
Flowco Production Solutions, LLC
78
15
Baker Hughes Holdings LLC
3009
15
ExxonMobil Upstream Research Company
2454
13
Aramco Services Company
3750
12
Floway Innovations Inc.
12
12
Petroleum Technology Company AS
99
11
Autres propriétaires 452