Détention brevets de la classe E21B 27/00

Brevets de cette classe: 363

Historique des publications depuis 10 ans

22
33
21
14
27
30
11
22
20
4
2017 2018 2019 2020 2021 2022 2023 2024 2025 2026

Propriétaires principaux

Proprétaire
Total
Cette classe
Halliburton Energy Services, Inc.
21115
47
Saudi Arabian Oil Company
13865
38
Schlumberger Technology Corporation
11298
20
Altus Intervention (technologies) AS
68
17
Baker Hughes Holdings LLC
2985
14
Aramco Services Company
4156
13
Typhon Technology Solutions (U.S.), LLC
106
11
Baker Hughes Incorporated
5098
10
Bauer Maschinen GmbH
231
9
Fallback LLC
9
7
Forum US, Inc.
343
6
Weatherford Technology Holdings, LLC
2034
5
Altus Intervention AS
20
5
Interwell Technology AS
32
4
Katch Kan Holdings Ltd.
55
4
Qinterra Technologies AS
36
4
Wellbore Energy Solutions, LLC
7
4
Welltec AS
300
4
Baker Hughes Oilfield Operations, LLC
2414
4
Baker Hughes, a GE Company, LLC
2105
4
Autres propriétaires 133