- 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: 141
10-year publication summary
|
16
|
9
|
14
|
11
|
6
|
9
|
10
|
0
|
4
|
3
|
| 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 | 2025 | 2026 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| Halliburton Energy Services, Inc. | 21309 |
27 |
| Flotek Chemistry, LLC | 115 |
9 |
| Schlumberger Technology Corporation | 11879 |
7 |
| M-I L.L.C. | 738 |
6 |
| Kemira Oyj | 1264 |
5 |
| Saudi Arabian Oil Company | 14305 |
5 |
| Schlumberger Canada Limited | 7620 |
4 |
| Schlumberger Technology B.v. | 5299 |
4 |
| Aramco Services Company | 4192 |
4 |
| Services Petroliers Schlumberger | 6033 |
4 |
| Baker Hughes Oilfield Operations, LLC | 2543 |
4 |
| Chevron U.S.A. Inc. | 4159 |
3 |
| Schlumberger Holdings Limited | 2684 |
2 |
| Baker Hughes Incorporated | 4905 |
2 |
| Shell Internationale Research Maatschappij B.V. | 3394 |
2 |
| Shell Oil Company | 2068 |
2 |
| The Lubrizol Corporation | 1259 |
2 |
| Prad Research and Development Limited | 2652 |
2 |
| Stepan Company | 565 |
2 |
| Baker Hughes, a GE Company, LLC | 2051 |
2 |
| Other owners | 43 |