Patent holdings for IPC class C09K 8/86

Total number of patents in this class: 392

10-year publication summary

32
47
44
52
46
40
25
17
16
5
2015 2016 2017 2018 2019 2020 2021 2022 2023 2024

Principal owners for this class

Owner
All patents
This class
Halliburton Energy Services, Inc.
20165
63
Saudi Arabian Oil Company
11322
36
Baker Hughes Holdings LLC
3060
16
Aramco Services Company
3504
12
Schlumberger Technology Corporation
9690
11
Flotek Chemistry, LLC
120
11
M-I L.L.C.
893
11
Akzo Nobel Chemicals International B.V.
520
10
Nouryon Chemicals International B.V.
508
10
Schlumberger Canada Limited
6913
9
Chevron U.S.A. Inc.
3774
9
Baker Hughes Incorporated
5689
8
BASF SE
19740
8
Schlumberger Technology B.v.
4951
7
Nissan Chemical America Corporation
57
7
Services Petroliers Schlumberger
5426
7
Stepan Company
567
6
Wilmar Trading Pte. Ltd.
133
5
Championx USA Inc.
250
5
Dorf Ketal Chemicals FZE
238
5
Other owners 136