Détention brevets de la classe C09K 8/504

Brevets de cette classe: 471

Historique des publications depuis 10 ans

14
18
28
60
38
42
37
29
21
16
2016 2017 2018 2019 2020 2021 2022 2023 2024 2025

Propriétaires principaux

Proprétaire
Total
Cette classe
Saudi Arabian Oil Company
13372
143
Halliburton Energy Services, Inc.
20946
75
Aramco Services Company
4025
57
Schlumberger Technology Corporation
10881
17
Schlumberger Canada Limited
7366
8
Schlumberger Technology B.v.
5183
8
Services Petroliers Schlumberger
5828
8
Southwest Petroleum University
476
8
CURTIS, Philip, Anthony
411
8
Baker Hughes Incorporated
5248
7
Schlumberger Holdings Limited
2803
6
Baker Hughes Holdings LLC
3001
6
M-I L.L.C.
815
5
Prad Research and Development Limited
2692
5
Xgs Energy, Inc.
23
5
The Curators of the University of Missouri
1056
4
Lyondellbasell Advanced Polymers Inc.
101
4
Firehole Geothermal Solutions, LLC
5
4
China University of Geosciences, Beijing
74
3
China University of Petroleum (East China)
381
3
Autres propriétaires 87