Patent holdings for IPC class C09K 8/80

Total number of patents in this class: 2408

10-year publication summary

232
335
312
317
224
192
179
107
86
7
2015 2016 2017 2018 2019 2020 2021 2022 2023 2024

Principal owners for this class

Owner
All patents
This class
Halliburton Energy Services, Inc.
20101
468
Saudi Arabian Oil Company
11068
137
Schlumberger Technology Corporation
9583
114
Schlumberger Canada Limited
6831
111
Schlumberger Technology B.v.
4916
100
Services Petroliers Schlumberger
5362
99
CARBO Ceramics Inc.
252
85
Schlumberger Holdings Limited
2961
69
Prad Research and Development Limited
2696
52
Baker Hughes Holdings LLC
3105
44
Aramco Services Company
3439
37
Dow Global Technologies LLC
10065
31
Baker Hughes Incorporated
5771
29
CURTIS, Philip, Anthony
497
29
Preferred Technology, LLC
38
28
Baker Hughes, a GE Company, LLC
2187
28
BASF SE
19607
20
Hexion Inc.
208
20
S.p.c.m. SA
309
19
Self-suspending Proppant LLC
21
18
Other owners 870