Détention brevets de la classe E21B 29/06

Brevets de cette classe: 422

Historique des publications depuis 10 ans

35
15
26
16
30
32
29
30
18
12
2016 2017 2018 2019 2020 2021 2022 2023 2024 2025

Propriétaires principaux

Proprétaire
Total
Cette classe
Halliburton Energy Services, Inc.
20937
110
Baker Hughes Oilfield Operations, LLC
2319
43
Weatherford Technology Holdings, LLC
2031
27
Baker Hughes Holdings LLC
3003
23
Baker Hughes Incorporated
5254
21
Saudi Arabian Oil Company
13316
18
Schlumberger Technology Corporation
10848
13
Coiled Tubing Specialties, LLC
31
9
ConocoPhillips Company
1678
8
Wellbore Integrity Solutions LLC
91
8
Schlumberger Canada Limited
7357
7
Abrado, Inc.
27
7
Odfjell Technology Invest Ltd
24
6
Schlumberger Technology B.v.
5184
5
Aarbakke Innovation A.S.
30
5
Robertson Intellectual Properties, LLC
92
5
Services Petroliers Schlumberger
5823
5
Welltec AS
299
5
Baker Hughes, a GE Company, LLC
2110
5
Aramco Services Company
4007
4
Autres propriétaires 88