Patent holdings for IPC class C09K 8/62

Total number of patents in this class: 1040

10-year publication summary

147
187
142
78
61
50
29
18
18
11
2016 2017 2018 2019 2020 2021 2022 2023 2024 2025

Principal owners for this class

Owner
All patents
This class
Halliburton Energy Services, Inc.
20697
271
Saudi Arabian Oil Company
12808
60
Schlumberger Technology Corporation
10597
49
Schlumberger Canada Limited
7211
45
Services Petroliers Schlumberger
5743
42
Schlumberger Technology B.v.
5141
41
Baker Hughes Holdings LLC
3011
22
Schlumberger Holdings Limited
2846
20
Aramco Services Company
3897
20
Prad Research and Development Limited
2695
17
BASF SE
20728
15
Baker Hughes Incorporated
5299
12
Shell Internationale Research Maatschappij B.V.
3544
12
Shell Oil Company
2142
12
Baker Hughes, a GE Company, LLC
2114
12
BP Corporation North America Inc.
744
11
Green Products & Technologies, L.L.C.
38
10
CURTIS, Philip, Anthony
444
9
CARBO Ceramics Inc.
238
8
Innospec Limited
335
8
Other owners 344