Patent holdings for IPC class C09K 8/516

Total number of patents in this class: 770

10-year publication summary

52
59
86
50
62
44
18
19
19
4
2017 2018 2019 2020 2021 2022 2023 2024 2025 2026

Principal owners for this class

Owner
All patents
This class
Saudi Arabian Oil Company
13949
172
Halliburton Energy Services, Inc.
21194
86
Aramco Services Company
4162
65
Schlumberger Technology Corporation
11483
39
Schlumberger Canada Limited
7553
24
Schlumberger Technology B.v.
5268
22
Services Petroliers Schlumberger
5977
22
Baker Hughes Holdings LLC
2985
21
Schlumberger Holdings Limited
2737
18
Prad Research and Development Limited
2679
17
Lyondellbasell Advanced Polymers Inc.
103
12
Alfaisal University
44
10
Kuraray Co., Ltd.
3564
7
M-I L.L.C.
772
7
Southwest Petroleum University
507
7
Swellfix UK Limited
60
7
Baker Hughes Incorporated
5042
6
Baker Hughes Oilfield Operations, LLC
2439
6
Baker Hughes, a GE Company, LLC
2101
6
CURTIS, Philip, Anthony
351
6
Other owners 210