Détention brevets de la classe C09K 8/50

Brevets de cette classe: 378

Historique des publications depuis 10 ans

44
20
34
14
26
11
14
7
4
4
2017 2018 2019 2020 2021 2022 2023 2024 2025 2026

Propriétaires principaux

Proprétaire
Total
Cette classe
Halliburton Energy Services, Inc.
21338
111
Saudi Arabian Oil Company
14235
40
Aramco Services Company
4195
15
Schlumberger Canada Limited
7606
11
Schlumberger Technology B.v.
5298
11
Baker Hughes Incorporated
4934
11
Services Petroliers Schlumberger
6024
11
Schlumberger Holdings Limited
2699
10
Prad Research and Development Limited
2661
10
Schlumberger Technology Corporation
11818
9
M-I L.L.C.
746
9
Baker Hughes Holdings LLC
3023
8
Board of Supervisors of Louisiana State University and Agricultural and Mechanical College
824
5
ConocoPhillips Company
1709
5
ENI S.p.A.
1305
5
CURTIS, Philip, Anthony
331
4
Championx LLC
633
4
Dow Global Technologies LLC
10944
3
Board of Regents, The University of Texas System
6107
3
Eavor Technologies Inc.
109
3
Autres propriétaires 90