Patent holdings for IPC class C09K 8/62

Total number of patents in this class: 1009

10-year publication summary

187
142
78
61
49
29
20
19
25
5
2017 2018 2019 2020 2021 2022 2023 2024 2025 2026

Principal owners for this class

Owner
All patents
This class
Halliburton Energy Services, Inc.
21300
262
Saudi Arabian Oil Company
14416
60
Schlumberger Technology Corporation
12005
51
Schlumberger Canada Limited
7622
42
Services Petroliers Schlumberger
6032
40
Schlumberger Technology B.v.
5294
39
Baker Hughes Holdings LLC
3018
21
Aramco Services Company
4191
20
Schlumberger Holdings Limited
2656
17
Prad Research and Development Limited
2641
16
BASF SE
21334
15
Baker Hughes Incorporated
4861
12
Shell Internationale Research Maatschappij B.V.
3377
12
Shell Oil Company
2053
12
Baker Hughes, a GE Company, LLC
2022
12
BP Corporation North America Inc.
762
11
ExxonMobil Technology and Engineering Company
1440
11
Green Products & Technologies, L.L.C.
38
10
CARBO Ceramics Inc.
175
9
Chevron U.S.A. Inc.
4186
8
Other owners 329