- 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: 180
10-year publication summary
|
17
|
10
|
13
|
18
|
15
|
13
|
10
|
5
|
10
|
4
|
| 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 | 2025 | 2026 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| Halliburton Energy Services, Inc. | 21257 |
41 |
| Saudi Arabian Oil Company | 13956 |
25 |
| Schlumberger Technology Corporation | 11584 |
8 |
| Lamberti SpA | 257 |
6 |
| M-I L.L.C. | 765 |
5 |
| CURTIS, Philip, Anthony | 348 |
5 |
| Chevron U.S.A. Inc. | 4117 |
3 |
| Aramco Services Company | 4162 |
3 |
| BP Exploration Operating Company Limited | 258 |
3 |
| China University of Petroleum (Beijing) | 299 |
3 |
| Elementis Specialties, Inc. | 156 |
3 |
| Emery Oleochemicals GmbH | 110 |
3 |
| Flotek Chemistry, LLC | 115 |
3 |
| Nalco Company | 542 |
3 |
| TURNER, Craig, Robert | 138 |
3 |
| Baker Hughes Holdings LLC | 2986 |
3 |
| Schlumberger Canada Limited | 7588 |
2 |
| Schlumberger Technology B.v. | 5282 |
2 |
| Baker Hughes Incorporated | 5018 |
2 |
| BASF SE | 21165 |
2 |
| Other owners | 52 |