- 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: 107
10-year publication summary
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4
|
6
|
8
|
10
|
11
|
13
|
3
|
6
|
7
|
0
|
| 2016 | 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 | 2025 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| Halliburton Energy Services, Inc. | 20466 |
22 |
| Saudi Arabian Oil Company | 12509 |
17 |
| Aramco Services Company | 3771 |
6 |
| Schlumberger Canada Limited | 7167 |
5 |
| Schlumberger Technology B.v. | 5083 |
5 |
| Services Petroliers Schlumberger | 5645 |
5 |
| Schlumberger Holdings Limited | 2866 |
4 |
| Edwards Lifesciences Corporation | 4483 |
3 |
| Prad Research and Development Limited | 2696 |
3 |
| Terves, LLC | 54 |
3 |
| Schlumberger Technology Corporation | 10296 |
2 |
| Instituto Mexicano Del Petroleo | 218 |
2 |
| 3m Innovative Properties Company | 17976 |
1 |
| BASF SE | 20458 |
1 |
| Chevron U.S.A. Inc. | 3864 |
1 |
| Commissariat à l'énergie atomique et aux energies alternatives | 10700 |
1 |
| Areva NC | 134 |
1 |
| Aubin Limited | 8 |
1 |
| China University of Petroleum (Beijing) | 272 |
1 |
| China University of Petroleum (East China) | 350 |
1 |
| Other owners | 22 |