Détention brevets de la classe E21B 29/06

Brevets de cette classe: 435

Historique des publications depuis 10 ans

15
26
16
30
32
29
30
18
21
6
2017 2018 2019 2020 2021 2022 2023 2024 2025 2026

Propriétaires principaux

Proprétaire
Total
Cette classe
Halliburton Energy Services, Inc.
21144
110
Baker Hughes Oilfield Operations, LLC
2424
46
Weatherford Technology Holdings, LLC
2040
30
Saudi Arabian Oil Company
13904
22
Baker Hughes Holdings LLC
2982
21
Baker Hughes Incorporated
5088
20
Schlumberger Technology Corporation
11349
15
Wellbore Integrity Solutions LLC
99
10
Coiled Tubing Specialties, LLC
31
9
ConocoPhillips Company
1699
8
Schlumberger Canada Limited
7524
7
Abrado, Inc.
27
7
Odfjell Technology Invest Ltd
24
6
Schlumberger Technology B.v.
5259
5
Aarbakke Innovation A.S.
30
5
Aramco Services Company
4158
5
Robertson Intellectual Properties, LLC
94
5
Services Petroliers Schlumberger
5945
5
Welltec AS
303
5
Baker Hughes, a GE Company, LLC
2105
5
Autres propriétaires 89