- All sections
- C - Chemistrymetallurgy
- C09K - Materials for applications not otherwise provided forapplications of materials not otherwise provided for
- C09K 8/05 - Aqueous well-drilling compositions containing inorganic compounds only, e.g. mixtures of clay and salt
Patent holdings for IPC class C09K 8/05
Total number of patents in this class: 115
10-year publication summary
|
4
|
20
|
11
|
7
|
10
|
3
|
5
|
7
|
5
|
1
|
| 2016 | 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 | 2025 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| Halliburton Energy Services, Inc. | 20449 |
17 |
| Saudi Arabian Oil Company | 12481 |
14 |
| Canadian Energy Services LP | 74 |
7 |
| Schlumberger Technology Corporation | 10284 |
6 |
| Albemarle Corporation | 511 |
5 |
| M-I L.L.C. | 854 |
5 |
| Board of Regents, The University of Texas System | 5627 |
3 |
| CURTIS, Philip, Anthony | 491 |
3 |
| Baker Hughes Holdings LLC | 3008 |
3 |
| Chevron U.S.A. Inc. | 3858 |
2 |
| Aramco Services Company | 3763 |
2 |
| Bromine Compounds Ltd. | 187 |
2 |
| Dongying Taier Petrol Technology Co., Ltd | 4 |
2 |
| ExxonMobil Upstream Research Company | 2454 |
2 |
| Nfluids Inc. | 11 |
2 |
| Secure Energy (drilling Services) Inc. | 16 |
2 |
| SNF S.A.S. | 21 |
2 |
| Yangtze University | 54 |
2 |
| Nissan Chemical Corporation | 1883 |
2 |
| Sinomine Resources (US) Inc. | 7 |
2 |
| Other owners | 30 |