- All sections
- C - Chemistrymetallurgy
- C09K - Materials for applications not otherwise provided forapplications of materials not otherwise provided for
- C09K 8/26 - Oil-in-water emulsions
Patent holdings for IPC class C09K 8/26
Total number of patents in this class: 140
10-year publication summary
|
9
|
13
|
8
|
12
|
10
|
6
|
9
|
8
|
0
|
3
|
| 2016 | 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 | 2025 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| Halliburton Energy Services, Inc. | 20911 |
28 |
| Flotek Chemistry, LLC | 116 |
9 |
| Schlumberger Technology Corporation | 10780 |
7 |
| M-I L.L.C. | 815 |
6 |
| Kemira Oyj | 1207 |
5 |
| Schlumberger Canada Limited | 7332 |
4 |
| Schlumberger Technology B.v. | 5176 |
4 |
| Saudi Arabian Oil Company | 13224 |
4 |
| Services Petroliers Schlumberger | 5803 |
4 |
| Baker Hughes Oilfield Operations, LLC | 2302 |
4 |
| Chevron U.S.A. Inc. | 3967 |
3 |
| Aramco Services Company | 3987 |
3 |
| Schlumberger Holdings Limited | 2817 |
2 |
| Baker Hughes Incorporated | 5274 |
2 |
| Shell Internationale Research Maatschappij B.V. | 3548 |
2 |
| Shell Oil Company | 2138 |
2 |
| BP Exploration Operating Company Limited | 270 |
2 |
| The Lubrizol Corporation | 1288 |
2 |
| Prad Research and Development Limited | 2693 |
2 |
| Stepan Company | 582 |
2 |
| Other owners | 43 |