- All sections
- C - Chemistrymetallurgy
- C09K - Materials for applications not otherwise provided forapplications of materials not otherwise provided for
- C09K 8/28 - Oil-in-water emulsions containing organic additives
Patent holdings for IPC class C09K 8/28
Total number of patents in this class: 174
10-year publication summary
|
7
|
15
|
8
|
12
|
17
|
14
|
12
|
10
|
5
|
9
|
| 2016 | 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 | 2025 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| Halliburton Energy Services, Inc. | 21090 |
40 |
| Saudi Arabian Oil Company | 13686 |
25 |
| Schlumberger Technology Corporation | 11075 |
6 |
| Lamberti SpA | 254 |
5 |
| M-I L.L.C. | 806 |
5 |
| CURTIS, Philip, Anthony | 384 |
5 |
| BASF SE | 21098 |
3 |
| Chevron U.S.A. Inc. | 4020 |
3 |
| Aramco Services Company | 4099 |
3 |
| BP Exploration Operating Company Limited | 264 |
3 |
| China University of Petroleum (Beijing) | 292 |
3 |
| Elementis Specialties, Inc. | 151 |
3 |
| Emery Oleochemicals GmbH | 110 |
3 |
| Flotek Chemistry, LLC | 116 |
3 |
| Nalco Company | 566 |
3 |
| TURNER, Craig, Robert | 138 |
3 |
| Baker Hughes Holdings LLC | 3002 |
3 |
| Baker Hughes Incorporated | 5172 |
2 |
| BYK-Chemie GmbH | 448 |
2 |
| CNPC USA Corp. | 169 |
2 |
| Other owners | 49 |