Détention brevets de la classe E21B 31/113

Brevets de cette classe: 130

Historique des publications depuis 10 ans

12
8
11
14
13
11
11
13
3
3
2016 2017 2018 2019 2020 2021 2022 2023 2024 2025

Propriétaires principaux

Proprétaire
Total
Cette classe
Impact Selector International, LLC
114
12
Saudi Arabian Oil Company
12891
11
Thru Tubing Solutions, Inc.
375
11
Halliburton Energy Services, Inc.
20769
8
Weatherford Technology Holdings, LLC
2012
8
Lee Oilfield Service Ltd.
13
8
Rotojar Innovations Limited
28
6
National Oilwell Varco, L.P.
1648
4
Tenax Energy Solutions, LLC
23
4
Hydrashock, L.L.C.
7
4
Ardyne Holdings Limited
87
4
Schlumberger Technology Corporation
10641
3
Smith International, Inc.
720
3
Baker Hughes Oilfield Operations, LLC
2273
3
Workover Solutions, Inc.
49
3
Aramco Services Company
3921
2
KLX Energy Services LLC
71
2
Optimum Petroleum Services Inc.
8
2
WENZEL Downhole Tools ULC
13
2
HAV Technology AS
2
2
Autres propriétaires 28