Détention brevets de la classe F04B 47/00

Brevets de cette classe: 373

Historique des publications depuis 10 ans

29
35
39
26
25
29
25
16
25
15
2016 2017 2018 2019 2020 2021 2022 2023 2024 2025

Propriétaires principaux

Proprétaire
Total
Cette classe
Halliburton Energy Services, Inc.
21078
41
SPM Oil & Gas Inc.
337
16
Saudi Arabian Oil Company
13656
15
National Oilwell Varco, L.P.
1699
12
US Well Services LLC
228
11
Anything for a Buck, Inc.
13
10
Aramco Services Company
4095
9
Schlumberger Technology Corporation
11054
8
BJ Energy Solutions, LLC (formerly TES Asset Acquisition, LLC)
218
8
Cleantek Industries Inc.
27
7
GD Energy Products, LLC
120
6
Schlumberger Canada Limited
7432
5
Caterpillar Inc.
9768
5
Services Petroliers Schlumberger
5884
5
Kerr Machine Co.
157
5
Fallback LLC
8
5
Schlumberger Technology B.v.
5223
4
Baker Hughes Incorporated
5175
4
Weatherford Technology Holdings, LLC
2033
4
ExxonMobil Upstream Research Company
2379
4
Autres propriétaires 189