Patent holdings for IPC class C09K 8/62

Total number of patents in this class: 1035

10-year publication summary

133
160
118
66
49
43
23
18
18
15
2016 2017 2018 2019 2020 2021 2022 2023 2024 2025

Principal owners for this class

Owner
All patents
This class
Halliburton Energy Services, Inc.
20977
271
Saudi Arabian Oil Company
13428
62
Schlumberger Technology Corporation
10914
49
Schlumberger Canada Limited
7373
44
Services Petroliers Schlumberger
5835
40
Schlumberger Technology B.v.
5189
39
Baker Hughes Holdings LLC
2999
21
Aramco Services Company
4039
20
Schlumberger Holdings Limited
2800
18
Prad Research and Development Limited
2690
16
BASF SE
21039
15
Baker Hughes Incorporated
5243
12
Shell Internationale Research Maatschappij B.V.
3557
12
Shell Oil Company
2138
12
Baker Hughes, a GE Company, LLC
2109
12
BP Corporation North America Inc.
748
11
Green Products & Technologies, L.L.C.
38
10
CURTIS, Philip, Anthony
405
9
CARBO Ceramics Inc.
236
8
Innospec Limited
358
8
Other owners 346