Détention brevets de la classe F04B 47/08

Brevets de cette classe: 68

Historique des publications depuis 10 ans

7
7
13
5
12
4
9
2
4
0
2016 2017 2018 2019 2020 2021 2022 2023 2024 2025

Propriétaires principaux

Proprétaire
Total
Cette classe
PMC Pumps Inc.
23
6
Weatherford Technology Holdings, LLC
2105
5
Flapump AS
3
3
Digital Downhole, Inc.
4
3
Halliburton Energy Services, Inc.
20419
2
Depiak Industrial Technology Corporation
3
2
I-jack Technologies Incorporated
23
2
Mcnichol, Richard Frederick
3
2
Q.E.D. Environmental Systems, Inc.
95
2
Saudi Arabian Oil Company
12423
2
MGB Oilfield Solutions, LLC
16
2
Universal Downhole Technologies, Inc.
4
2
Wright's IP Holdings, LLC
31
2
Caterpillar Inc.
9158
1
Aramco Services Company
3744
1
Celtic Machining Ltd.
11
1
Davis, Raymond C.
2
1
Energy Recovery, Inc.
175
1
FMC Technologies, Inc.
586
1
GreenStract, LLC
9
1
Autres propriétaires 26