Patent holdings for IPC class C09K 8/62

Total number of patents in this class: 1067

10-year publication summary

111
147
187
142
78
61
50
28
18
9
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
282
Saudi Arabian Oil Company
11322
59
Schlumberger Canada Limited
6913
49
Schlumberger Technology Corporation
9690
47
Services Petroliers Schlumberger
5426
45
Schlumberger Technology B.v.
4951
44
Schlumberger Holdings Limited
2947
24
Baker Hughes Holdings LLC
3060
23
Aramco Services Company
3504
19
Prad Research and Development Limited
2696
17
BASF SE
19740
15
CURTIS, Philip, Anthony
497
13
Baker Hughes Incorporated
5689
12
Shell Internationale Research Maatschappij B.V.
3792
12
Shell Oil Company
2196
12
Baker Hughes, a GE Company, LLC
2171
12
BP Corporation North America Inc.
776
11
Green Products & Technologies, L.L.C.
37
10
CARBO Ceramics Inc.
248
8
Innospec Limited
308
8
Other owners 345