- All sections
- C - Chemistrymetallurgy
- C09K - Materials for applications not otherwise provided forapplications of materials not otherwise provided for
- C09K 8/38 - Gaseous or foamed well-drilling compositions
Patent holdings for IPC class C09K 8/38
Total number of patents in this class: 90
10-year publication summary
|
8
|
5
|
9
|
10
|
14
|
5
|
3
|
2
|
3
|
3
|
| 2016 | 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 | 2025 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| Halliburton Energy Services, Inc. | 20835 |
23 |
| Saudi Arabian Oil Company | 12947 |
8 |
| China University of Petroleum (Beijing) | 279 |
4 |
| BASF SE | 20892 |
3 |
| Advansix Resins & Chemicals LLC | 299 |
3 |
| Green Products & Technologies, L.L.C. | 38 |
3 |
| Championx LLC | 494 |
3 |
| Aramco Services Company | 3929 |
2 |
| BYK-Chemie GmbH | 444 |
2 |
| Dongying Taier Petrol Technology Co., Ltd | 4 |
2 |
| Instituto Mexicano Del Petroleo | 221 |
2 |
| Lamberti SpA | 254 |
2 |
| Momentive Performance Materials Inc. | 918 |
2 |
| Societe d'Exploitation de Produits pour Les Industries Chimiques SEPPIC | 402 |
2 |
| Southwest Petroleum University | 465 |
2 |
| Schlumberger Canada Limited | 7273 |
1 |
| Schlumberger Technology B.v. | 5161 |
1 |
| Schlumberger Holdings Limited | 2835 |
1 |
| 3m Innovative Properties Company | 17858 |
1 |
| Shell Internationale Research Maatschappij B.V. | 3551 |
1 |
| Other owners | 22 |