- All sections
- C - Chemistrymetallurgy
- C09K - Materials for applications not otherwise provided forapplications of materials not otherwise provided for
- C09K 8/32 - Non-aqueous well-drilling compositions, e.g. oil-based
Patent holdings for IPC class C09K 8/32
Total number of patents in this class: 428
10-year publication summary
|
57
|
39
|
46
|
25
|
16
|
11
|
6
|
10
|
14
|
2
|
| 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 | 2025 | 2026 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| Saudi Arabian Oil Company | 14135 |
67 |
| Halliburton Energy Services, Inc. | 21293 |
55 |
| M-I L.L.C. | 748 |
22 |
| Schlumberger Technology Corporation | 11730 |
16 |
| Schlumberger Canada Limited | 7602 |
14 |
| Schlumberger Technology B.v. | 5297 |
14 |
| Services Petroliers Schlumberger | 6020 |
14 |
| Aramco Services Company | 4178 |
12 |
| Schlumberger Holdings Limited | 2708 |
9 |
| Baker Hughes Incorporated | 4952 |
8 |
| ExxonMobil Chemical Patents Inc. | 3796 |
8 |
| Prad Research and Development Limited | 2667 |
8 |
| Elementis Specialties, Inc. | 156 |
7 |
| Chevron U.S.A. Inc. | 4128 |
6 |
| Chevron Phillips Chemical Company LP | 1866 |
6 |
| Albemarle Corporation | 484 |
5 |
| BYK-Chemie GmbH | 447 |
5 |
| Durham University | 38 |
5 |
| Emery Oleochemicals GmbH | 110 |
5 |
| Tucc Technology, LLC | 18 |
5 |
| Other owners | 137 |