- All sections
- C - Chemistrymetallurgy
- C09K - Materials for applications not otherwise provided forapplications of materials not otherwise provided for
- C09K 8/565 - Oil-based compositions
Patent holdings for IPC class C09K 8/565
Total number of patents in this class: 73
10-year publication summary
|
11
|
19
|
12
|
2
|
5
|
3
|
1
|
3
|
2
|
0
|
| 2016 | 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 | 2025 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| Halliburton Energy Services, Inc. | 20489 |
25 |
| Saudi Arabian Oil Company | 12579 |
7 |
| Lamberti SpA | 255 |
6 |
| Baker Hughes Holdings LLC | 3009 |
5 |
| Schlumberger Norge AS | 74 |
3 |
| M-I L.L.C. | 852 |
3 |
| Baker Hughes Incorporated | 5488 |
2 |
| Aramco Services Company | 3787 |
2 |
| Sasol Chemicals GmbH | 39 |
2 |
| Schlumberger Technology Corporation | 10317 |
1 |
| 3m Innovative Properties Company | 17998 |
1 |
| Chevron U.S.A. Inc. | 3873 |
1 |
| BP Exploration Operating Company Limited | 263 |
1 |
| Canadian Energy Services LP | 74 |
1 |
| Champion Technologies Ltd. | 12 |
1 |
| King Fahd University of Petroleum and Minerals | 1043 |
1 |
| Nalco Company | 593 |
1 |
| Rhodia Operations | 1591 |
1 |
| Sasol Performance Chemicals GmbH | 33 |
1 |
| Statoil ASA | 127 |
1 |
| Other owners | 7 |