Détention brevets de la classe E21B 27/00

Brevets de cette classe: 359

Historique des publications depuis 10 ans

26
22
33
21
14
27
30
10
21
19
2016 2017 2018 2019 2020 2021 2022 2023 2024 2025

Propriétaires principaux

Proprétaire
Total
Cette classe
Halliburton Energy Services, Inc.
21006
45
Saudi Arabian Oil Company
13569
37
Schlumberger Technology Corporation
10994
19
Altus Intervention (technologies) AS
69
17
Baker Hughes Holdings LLC
3006
15
Aramco Services Company
4077
13
Baker Hughes Incorporated
5190
11
Typhon Technology Solutions (U.S.), LLC
97
11
Bauer Maschinen GmbH
229
9
Forum US, Inc.
340
6
Fallback LLC
8
6
Weatherford Technology Holdings, LLC
2029
5
Altus Intervention AS
20
5
Interwell Technology AS
32
4
Katch Kan Holdings Ltd.
55
4
Qinterra Technologies AS
38
4
Wellbore Energy Solutions, LLC
7
4
Welltec AS
300
4
Baker Hughes Oilfield Operations, LLC
2376
4
Baker Hughes, a GE Company, LLC
2107
4
Autres propriétaires 132