Détention brevets de la classe E21B 27/00

Brevets de cette classe: 364

Historique des publications depuis 10 ans

22
33
21
14
27
30
13
22
20
7
2017 2018 2019 2020 2021 2022 2023 2024 2025 2026

Propriétaires principaux

Proprétaire
Total
Cette classe
Halliburton Energy Services, Inc.
21169
50
Saudi Arabian Oil Company
13943
38
Schlumberger Technology Corporation
11471
20
Altus Intervention (technologies) AS
65
16
Baker Hughes Holdings LLC
2983
14
Aramco Services Company
4162
13
Typhon Technology Solutions (U.S.), LLC
101
11
Baker Hughes Incorporated
5045
10
Bauer Maschinen GmbH
237
9
Fallback LLC
9
7
Forum US, Inc.
345
6
Weatherford Technology Holdings, LLC
2068
5
Altus Intervention AS
19
4
Interwell Technology AS
32
4
Katch Kan Holdings Ltd.
55
4
Qinterra Technologies AS
36
4
Wellbore Energy Solutions, LLC
7
4
Welltec AS
309
4
Baker Hughes Oilfield Operations, LLC
2436
4
Baker Hughes, a GE Company, LLC
2101
4
Autres propriétaires 133