Détention brevets de la classe E21B 17/06

Brevets de cette classe: 389

Historique des publications depuis 10 ans

31
31
35
24
31
19
32
24
16
9
2016 2017 2018 2019 2020 2021 2022 2023 2024 2025

Propriétaires principaux

Proprétaire
Total
Cette classe
Halliburton Energy Services, Inc.
20749
90
Saudi Arabian Oil Company
12858
21
Schlumberger Technology Corporation
10627
18
Impact Selector International, LLC
114
15
Weatherford Technology Holdings, LLC
2014
9
Baker Hughes Incorporated
5289
7
Thru Tubing Solutions, Inc.
375
7
Baker Hughes Oilfield Operations, LLC
2269
7
Enventure Global Technology, L.L.C.
93
6
Aramco Services Company
3910
6
Hunting Titan, Inc.
245
6
Intelligent Drilling Tools Limited
9
5
Vertice Oil Tools Inc.
90
5
Aker Subsea AS
130
4
FMC Kongsberg Subsea AS
251
4
National Oilwell Varco, L.P.
1646
4
Statoil Petroleum AS
520
4
Tercel IP Limited
37
4
Welltec AS
297
4
Baker Hughes Holdings LLC
3007
4
Autres propriétaires 159