- All sections
- C - Chemistrymetallurgy
- C09K - Materials for applications not otherwise provided forapplications of materials not otherwise provided for
- C09K 8/518 - Foams
Patent holdings for IPC class C09K 8/518
Total number of patents in this class: 110
10-year publication summary
|
6
|
8
|
10
|
11
|
13
|
3
|
6
|
8
|
6
|
2
|
| 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 | 2025 | 2026 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| Halliburton Energy Services, Inc. | 21296 |
22 |
| Saudi Arabian Oil Company | 14329 |
18 |
| Aramco Services Company | 4192 |
6 |
| Schlumberger Canada Limited | 7627 |
4 |
| Schlumberger Technology B.v. | 5302 |
4 |
| Services Petroliers Schlumberger | 6038 |
4 |
| Schlumberger Holdings Limited | 2683 |
3 |
| Prad Research and Development Limited | 2652 |
3 |
| Terves, LLC | 53 |
3 |
| Schlumberger Technology Corporation | 11893 |
2 |
| Chevron U.S.A. Inc. | 4162 |
2 |
| China University of Petroleum (East China) | 423 |
2 |
| Edwards Lifesciences Corporation | 4894 |
2 |
| Instituto Mexicano Del Petroleo | 201 |
2 |
| Petroleo Brasileiro S.A. - Petrobras | 973 |
2 |
| Universidade Estadual Paulista Julio de Mesquita Filho - Unesp | 36 |
2 |
| Baker Hughes Oilfield Operations, LLC | 2551 |
2 |
| RheoVest, LLC | 13 |
2 |
| Covia Solutions LLC | 80 |
2 |
| 3m Innovative Properties Company | 17459 |
1 |
| Other owners | 22 |