Patent holdings for IPC class C09K 8/86

Total number of patents in this class: 401

10-year publication summary

47
44
52
46
40
26
17
17
17
0
2016 2017 2018 2019 2020 2021 2022 2023 2024 2025

Principal owners for this class

Owner
All patents
This class
Halliburton Energy Services, Inc.
20438
62
Saudi Arabian Oil Company
12446
40
Baker Hughes Holdings LLC
3009
15
Chevron U.S.A. Inc.
3856
13
Aramco Services Company
3750
12
Schlumberger Technology Corporation
10263
11
Akzo Nobel Chemicals International B.V.
480
10
Flotek Chemistry, LLC
118
10
Nouryon Chemicals International B.V.
598
10
Schlumberger Canada Limited
7154
9
M-I L.L.C.
855
9
Baker Hughes Incorporated
5504
8
BASF SE
20432
8
Schlumberger Technology B.v.
5075
7
Nissan Chemical America Corporation
63
7
Services Petroliers Schlumberger
5633
7
Stepan Company
573
6
Wilmar Trading Pte. Ltd.
131
5
Dorf Ketal Chemicals FZE
239
5
ENERGY SOLUTIONS (US) LLC, a Delaware limited liability company
221
5
Other owners 142