Détention brevets de la classe C09K 8/50

Brevets de cette classe: 392

Historique des publications depuis 10 ans

42
44
20
34
14
26
11
14
6
0
2016 2017 2018 2019 2020 2021 2022 2023 2024 2025

Propriétaires principaux

Proprétaire
Total
Cette classe
Halliburton Energy Services, Inc.
20449
115
Saudi Arabian Oil Company
12481
39
Aramco Services Company
3763
15
Schlumberger Canada Limited
7161
13
Schlumberger Technology B.v.
5080
13
Services Petroliers Schlumberger
5639
13
Schlumberger Holdings Limited
2866
12
Baker Hughes Incorporated
5500
12
Prad Research and Development Limited
2696
11
M-I L.L.C.
854
9
Schlumberger Technology Corporation
10284
8
Baker Hughes Holdings LLC
3008
8
CURTIS, Philip, Anthony
491
7
Limited Liability Company "gr Petroleum"
12
6
Board of Supervisors of Louisiana State University and Agricultural and Mechanical College
804
5
ConocoPhillips Company
1680
5
ENI S.p.A.
1252
4
Championx LLC
439
4
3m Innovative Properties Company
17969
3
Dow Global Technologies LLC
10167
3
Autres propriétaires 87