Patent holdings for IPC class C09K 8/86

Total number of patents in this class: 403

10-year publication summary

45
39
46
41
37
23
14
15
17
4
2016 2017 2018 2019 2020 2021 2022 2023 2024 2025

Principal owners for this class

Owner
All patents
This class
Halliburton Energy Services, Inc.
20944
62
Saudi Arabian Oil Company
13349
40
Baker Hughes Holdings LLC
3001
15
Chevron U.S.A. Inc.
3984
12
Aramco Services Company
4023
12
Schlumberger Technology Corporation
10868
11
Akzo Nobel Chemicals International B.V.
436
10
Flotek Chemistry, LLC
116
10
Nouryon Chemicals International B.V.
607
10
Schlumberger Canada Limited
7363
9
M-I L.L.C.
815
9
Baker Hughes Incorporated
5251
8
BASF SE
20979
8
Schlumberger Technology B.v.
5187
7
Nissan Chemical America Corporation
63
7
Services Petroliers Schlumberger
5827
7
Stepan Company
581
6
Dorf Ketal Chemicals FZE
199
6
Wilmar Trading Pte. Ltd.
119
5
ENERGY SOLUTIONS (US) LLC, a Delaware limited liability company
185
5
Other owners 144