- All sections
- C - Chemistry; metallurgy
- C09K - Materials for applications not otherwise provided for; applications of materials not otherwise provided for
- C09K 8/52 - Compositions for preventing, limiting or eliminating depositions, e.g. for cleaning
Patent holdings for IPC class C09K 8/52
Total number of patents in this class: 1109
10-year publication summary
124
|
131
|
124
|
109
|
75
|
91
|
65
|
49
|
33
|
10
|
2015 | 2016 | 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 |
Principal owners for this class
Owner |
All patents
|
This class
|
---|---|---|
Halliburton Energy Services, Inc. | 20165 |
179 |
Saudi Arabian Oil Company | 11322 |
63 |
Schlumberger Canada Limited | 6913 |
35 |
Schlumberger Technology B.v. | 4951 |
34 |
Services Petroliers Schlumberger | 5426 |
34 |
M-I L.L.C. | 893 |
33 |
Ecolab USA Inc. | 5190 |
32 |
Dorf Ketal Chemicals FZE | 238 |
32 |
Schlumberger Technology Corporation | 9690 |
30 |
Baker Hughes Incorporated | 5689 |
27 |
Baker Hughes Holdings LLC | 3060 |
26 |
Championx USA Inc. | 250 |
25 |
Schlumberger Holdings Limited | 2947 |
24 |
Aramco Services Company | 3504 |
22 |
Baker Hughes Oilfield Operations, LLC | 1885 |
19 |
Prad Research and Development Limited | 2696 |
17 |
Baker Hughes, a GE Company, LLC | 2171 |
15 |
Chevron U.S.A. Inc. | 3774 |
13 |
Clariant International Ltd. | 978 |
13 |
Arkema France | 3790 |
12 |
Other owners | 424 |