Détention brevets de la classe C09K 8/16

Brevets de cette classe: 120

Historique des publications depuis 10 ans

4
10
15
13
11
7
8
10
10
2
2017 2018 2019 2020 2021 2022 2023 2024 2025 2026

Propriétaires principaux

Proprétaire
Total
Cette classe
Halliburton Energy Services, Inc.
21320
18
Saudi Arabian Oil Company
14248
18
King Fahd University of Petroleum and Minerals
1576
14
Canadian Energy Services LP
74
9
Southwest Petroleum University
521
8
Schlumberger Technology Corporation
11820
3
Schlumberger Canada Limited
7601
3
Schlumberger Technology B.v.
5295
3
China University of Petroleum (Beijing)
303
3
Services Petroliers Schlumberger
6023
3
Forta, LLC
54
3
China University of Petroleum (East China)
418
2
Lamberti USA, Inc.
5
2
M-I L.L.C.
743
2
Petroraza SAS
16
2
Baker Hughes Holdings LLC
3021
2
Massachusetts Institute of Technology
10254
1
Board of Regents, The University of Texas System
6117
1
Aramco Services Company
4196
1
IFP
135
1
Autres propriétaires 21