- All sections
- C - Chemistrymetallurgy
- C09K - Materials for applications not otherwise provided forapplications of materials not otherwise provided for
- C09K 8/64 - Oil-based compositions
Patent holdings for IPC class C09K 8/64
Total number of patents in this class: 355
10-year publication summary
|
49
|
38
|
28
|
23
|
27
|
14
|
11
|
15
|
14
|
1
|
| 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 | 2025 | 2026 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| Halliburton Energy Services, Inc. | 21217 |
64 |
| Saudi Arabian Oil Company | 13953 |
34 |
| Schlumberger Technology Corporation | 11485 |
10 |
| Lamberti SpA | 256 |
10 |
| Baker Hughes Holdings LLC | 2992 |
9 |
| ExxonMobil Technology and Engineering Company | 1278 |
9 |
| ENERGY SOLUTIONS (US) LLC, a Delaware limited liability company | 186 |
8 |
| Schlumberger Canada Limited | 7558 |
6 |
| Schlumberger Technology B.v. | 5267 |
6 |
| Schlumberger Holdings Limited | 2735 |
6 |
| Independence Oilfield Chemicals, LLC | 39 |
6 |
| Linde Aktiengesellschaft | 1435 |
6 |
| The Lubrizol Corporation | 1259 |
6 |
| Prad Research and Development Limited | 2679 |
6 |
| Services Petroliers Schlumberger | 5977 |
6 |
| SNF Group | 389 |
6 |
| Aramco Services Company | 4162 |
5 |
| Arkema France | 4185 |
5 |
| Tucc Technology, LLC | 18 |
5 |
| CARBO Ceramics Inc. | 231 |
4 |
| Other owners | 138 |