- All sections
- C - Chemistrymetallurgy
- C09K - Materials for applications not otherwise provided forapplications of materials not otherwise provided for
- C09K 8/08 - Clay-free compositions containing natural organic compounds, e.g. polysaccharides, or derivatives thereof
Patent holdings for IPC class C09K 8/08
Total number of patents in this class: 293
10-year publication summary
|
21
|
20
|
31
|
38
|
23
|
14
|
6
|
9
|
11
|
9
|
| 2016 | 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 | 2025 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| Saudi Arabian Oil Company | 13428 |
67 |
| Halliburton Energy Services, Inc. | 20977 |
55 |
| Schlumberger Technology Corporation | 10914 |
12 |
| M-I L.L.C. | 809 |
7 |
| Uniquem Inc. | 23 |
6 |
| Mud Masters Acquisition Corporation | 5 |
5 |
| CURTIS, Philip, Anthony | 405 |
5 |
| Schlumberger Canada Limited | 7373 |
4 |
| Schlumberger Technology B.v. | 5189 |
4 |
| Schlumberger Holdings Limited | 2800 |
4 |
| King Fahd University of Petroleum and Minerals | 1305 |
4 |
| Prad Research and Development Limited | 2690 |
4 |
| Services Petroliers Schlumberger | 5835 |
4 |
| Baker Hughes Holdings LLC | 2999 |
4 |
| BASF SE | 21039 |
3 |
| Aramco Services Company | 4039 |
3 |
| China University of Petroleum (Beijing) | 289 |
3 |
| Lamberti SpA | 256 |
3 |
| Lanxess Corporation | 272 |
3 |
| Eavor Technologies Inc. | 88 |
3 |
| Other owners | 90 |