- All sections
- C - Chemistrymetallurgy
- C09K - Materials for applications not otherwise provided forapplications of materials not otherwise provided for
- C09K 8/14 - Clay-containing compositions
Patent holdings for IPC class C09K 8/14
Total number of patents in this class: 156
10-year publication summary
|
8
|
12
|
22
|
14
|
13
|
9
|
9
|
4
|
6
|
1
|
| 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 | 2025 | 2026 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| Halliburton Energy Services, Inc. | 21320 |
38 |
| Saudi Arabian Oil Company | 14207 |
31 |
| King Fahd University of Petroleum and Minerals | 1569 |
8 |
| Aramco Services Company | 4188 |
6 |
| M-I L.L.C. | 747 |
6 |
| Southwest Petroleum University | 521 |
4 |
| Schlumberger Technology Corporation | 11798 |
3 |
| Baker Hughes Incorporated | 4940 |
2 |
| China National Petroleum Corporation | 636 |
2 |
| CNPC USA Corp. | 181 |
2 |
| Industry-Academic Cooperation Foundation Gyeongsang National University | 631 |
2 |
| Korea University Research and Business Foundation | 3262 |
2 |
| KWH Mirka Ltd | 18 |
2 |
| Mitsubishi Gas Chemical Company, Inc. | 3619 |
2 |
| Beijing Huamei, Inc. | 132 |
2 |
| Kao Specialties Americas LLC | 4 |
2 |
| Schlumberger Canada Limited | 7606 |
1 |
| Schlumberger Technology B.v. | 5298 |
1 |
| Schlumberger Holdings Limited | 2702 |
1 |
| 3m Innovative Properties Company | 17488 |
1 |
| Other owners | 38 |