Détention brevets de la classe E21B 33/124

Brevets de cette classe: 843

Historique des publications depuis 10 ans

39
59
53
48
49
65
41
35
35
4
2017 2018 2019 2020 2021 2022 2023 2024 2025 2026

Propriétaires principaux

Proprétaire
Total
Cette classe
Halliburton Energy Services, Inc.
21161
132
Schlumberger Technology Corporation
11449
54
Saudi Arabian Oil Company
13940
51
Baker Hughes Incorporated
5057
40
The Wellboss Company, LLC
112
25
Weatherford Technology Holdings, LLC
2033
22
ExxonMobil Upstream Research Company
2340
22
Welltec Manufacturing Center Completions ApS
94
22
Schlumberger Canada Limited
7544
19
Exacta-Frac Energy Services, Inc.
55
19
Services Petroliers Schlumberger
5975
18
Baker Hughes Holdings LLC
2981
18
Schlumberger Technology B.v.
5270
17
Packers Plus Energy Services Inc.
121
17
Baker Hughes Oilfield Operations, LLC
2430
17
Aramco Services Company
4172
15
Welltec Oilfield Solutions AG
65
15
Welltec AS
307
12
Baker Hughes, a GE Company, LLC
2101
9
Schlumberger Holdings Limited
2743
8
Autres propriétaires 291