Patent holdings for IPC class C09K 8/575

Total number of patents in this class: 334

10-year publication summary

44
41
40
31
25
12
8
9
5
8
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
100
Saudi Arabian Oil Company
13428
27
Baker Hughes Holdings LLC
2999
11
Schlumberger Canada Limited
7373
9
Schlumberger Technology Corporation
10914
8
Schlumberger Technology B.v.
5189
8
Aramco Services Company
4039
8
Services Petroliers Schlumberger
5835
8
Baker Hughes, a GE Company, LLC
2109
8
Schlumberger Holdings Limited
2800
7
M-I L.L.C.
809
7
Prad Research and Development Limited
2690
7
CURTIS, Philip, Anthony
405
7
Rhodia Operations
1586
5
Trican Well Service Ltd.
77
5
ENERGY SOLUTIONS (US) LLC, a Delaware limited liability company
185
5
EPG (engineered Nanoproducts Germany) AG
41
4
Poweltec
15
4
Maersk Olie og Gas AS
103
4
Schlumberger Norge AS
73
3
Other owners 89