Détention brevets de la classe F04B 47/00

Brevets de cette classe: 369

Historique des publications depuis 10 ans

35
39
26
25
29
25
16
26
17
3
2017 2018 2019 2020 2021 2022 2023 2024 2025 2026

Propriétaires principaux

Proprétaire
Total
Cette classe
Halliburton Energy Services, Inc.
21162
41
SPM Oil & Gas Inc.
346
16
Saudi Arabian Oil Company
13946
15
National Oilwell Varco, L.P.
1700
12
US Well Services LLC
225
11
Anything for a Buck, Inc.
13
10
Aramco Services Company
4164
9
Schlumberger Technology Corporation
11456
8
GD Energy Products, LLC
126
8
BJ Energy Solutions, LLC (formerly TES Asset Acquisition, LLC)
227
7
Fallback LLC
9
6
Caterpillar Inc.
10109
5
Kerr Machine Co.
165
5
Schlumberger Canada Limited
7544
4
Baker Hughes Incorporated
5049
4
Weatherford Technology Holdings, LLC
2034
4
ExxonMobil Upstream Research Company
2340
4
PENTAIR Flow Technologies, LLC
173
4
Raise Production Inc.
11
4
Services Petroliers Schlumberger
5974
4
Autres propriétaires 188