Détention brevets de la classe C09K 8/50

Brevets de cette classe: 391

Historique des publications depuis 10 ans

52
42
44
20
34
14
26
11
13
2
2015 2016 2017 2018 2019 2020 2021 2022 2023 2024

Propriétaires principaux

Proprétaire
Total
Cette classe
Halliburton Energy Services, Inc.
20165
115
Saudi Arabian Oil Company
11322
40
Schlumberger Canada Limited
6913
15
Aramco Services Company
3504
15
Schlumberger Technology B.v.
4951
13
Baker Hughes Incorporated
5689
13
Services Petroliers Schlumberger
5426
13
Schlumberger Holdings Limited
2947
12
Prad Research and Development Limited
2696
11
M-I L.L.C.
893
9
Schlumberger Technology Corporation
9690
8
Baker Hughes Holdings LLC
3060
8
CURTIS, Philip, Anthony
497
7
Limited Liability Company "gr Petroleum"
12
6
Board of Supervisors of Louisiana State University and Agricultural and Mechanical College
786
5
ConocoPhillips Company
1657
5
ENI S.p.A.
1241
4
Championx LLC
311
4
3m Innovative Properties Company
18406
3
Dow Global Technologies LLC
10147
3
Autres propriétaires 82