Patent holdings for IPC class C09K 8/575

Total number of patents in this class: 335

10-year publication summary

48
45
45
33
25
12
8
9
5
0
2016 2017 2018 2019 2020 2021 2022 2023 2024 2025

Principal owners for this class

Owner
All patents
This class
Halliburton Energy Services, Inc.
20538
104
Saudi Arabian Oil Company
12671
25
CURTIS, Philip, Anthony
473
12
Baker Hughes Holdings LLC
3034
11
Schlumberger Canada Limited
7185
9
Schlumberger Technology Corporation
10372
8
Schlumberger Technology B.v.
5090
8
Services Petroliers Schlumberger
5663
8
Baker Hughes, a GE Company, LLC
2123
8
Schlumberger Holdings Limited
2861
7
M-I L.L.C.
850
7
Prad Research and Development Limited
2696
7
ENERGY SOLUTIONS (US) LLC, a Delaware limited liability company
222
7
Aramco Services Company
3818
6
EPG (engineered Nanoproducts Germany) AG
43
5
Rhodia Operations
1591
5
Trican Well Service Ltd.
81
5
Poweltec
15
4
Maersk Olie og Gas AS
103
4
Schlumberger Norge AS
74
3
Other owners 82