Détention brevets de la classe E21B 27/04

Brevets de cette classe: 50

Historique des publications depuis 10 ans

8
4
10
4
5
10
1
3
1
1
2015 2016 2017 2018 2019 2020 2021 2022 2023 2024

Propriétaires principaux

Proprétaire
Total
Cette classe
Altus Intervention (technologies) AS
60
11
Qinterra Technologies AS
38
7
Baker Hughes Holdings LLC
3060
5
Halliburton Energy Services, Inc.
20165
4
Schlumberger Technology Corporation
9690
2
Sandvik Mining and Construction Oy
703
2
Thru Tubing Solutions, Inc.
361
2
Swarfix AS
3
2
Schlumberger Canada Limited
6913
1
Schlumberger Technology B.v.
4951
1
Archer Oil Tools AS
13
1
Bauer Maschinen GmbH
210
1
BlueStone Royalty, LLC
1
1
Innova Drilling and Intervention Limited
1
1
KLX Energy Services LLC
75
1
Saudi Arabian Oil Company
11322
1
Services Petroliers Schlumberger
5426
1
Baker Hughes Oilfield Operations, LLC
1885
1
Norse Oiltools AS
4
1
Oldenamp B.V.
4
1
Autres propriétaires 3