- All sections
- C - Chemistry; metallurgy
- C09K - Materials for applications not otherwise provided for; applications of materials not otherwise provided for
- C09K 8/536 - Compositions for preventing, limiting or eliminating depositions, e.g. for cleaning characterised by their form or by the form of their components, e.g. encapsulated material
Patent holdings for IPC class C09K 8/536
Total number of patents in this class: 311
10-year publication summary
|
15
|
25
|
32
|
34
|
21
|
25
|
27
|
18
|
15
|
4
|
| 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 |
38 |
| Saudi Arabian Oil Company | 11322 |
28 |
| Baker Hughes Holdings LLC | 3060 |
17 |
| Schlumberger Canada Limited | 6913 |
12 |
| Schlumberger Technology B.v. | 4951 |
12 |
| Services Petroliers Schlumberger | 5426 |
12 |
| Schlumberger Holdings Limited | 2947 |
9 |
| Baker Hughes Incorporated | 5689 |
9 |
| Prad Research and Development Limited | 2696 |
9 |
| Championx LLC | 311 |
8 |
| Baker Hughes, a GE Company, LLC | 2171 |
7 |
| ExxonMobil Upstream Research Company | 2525 |
6 |
| Baker Hughes Oilfield Operations, LLC | 1885 |
6 |
| Championx USA Inc. | 250 |
6 |
| Schlumberger Technology Corporation | 9690 |
5 |
| CURTIS, Philip, Anthony | 497 |
5 |
| M-I L.L.C. | 893 |
4 |
| Nissan Chemical America Corporation | 57 |
4 |
| Preferred Technology, LLC | 38 |
4 |
| Trican Well Service Ltd. | 83 |
4 |
| Other owners | 106 |