- 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: 101
10-year publication summary
|
5
|
9
|
10
|
14
|
5
|
3
|
2
|
3
|
15
|
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. | 21217 |
30 |
| Saudi Arabian Oil Company | 13953 |
8 |
| China University of Petroleum (Beijing) | 298 |
4 |
| BASF SE | 21129 |
3 |
| Advansix Resins & Chemicals LLC | 303 |
3 |
| Green Products & Technologies, L.L.C. | 38 |
3 |
| Championx LLC | 608 |
3 |
| Schlumberger Canada Limited | 7558 |
2 |
| Schlumberger Technology B.v. | 5267 |
2 |
| Aramco Services Company | 4162 |
2 |
| BYK-Chemie GmbH | 449 |
2 |
| Dongying Taier Petrol Technology Co., Ltd | 4 |
2 |
| Instituto Mexicano Del Petroleo | 212 |
2 |
| King Fahd University of Petroleum and Minerals | 1484 |
2 |
| Lamberti SpA | 256 |
2 |
| Services Petroliers Schlumberger | 5977 |
2 |
| Societe d'Exploitation de Produits pour Les Industries Chimiques SEPPIC | 410 |
2 |
| Southwest Petroleum University | 507 |
2 |
| Schlumberger Technology Corporation | 11485 |
1 |
| Schlumberger Holdings Limited | 2735 |
1 |
| Other owners | 23 |