- 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: 120
10-year publication summary
|
4
|
20
|
11
|
7
|
10
|
3
|
5
|
9
|
5
|
4
|
| 2016 | 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 | 2025 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| Halliburton Energy Services, Inc. | 20862 |
16 |
| Saudi Arabian Oil Company | 12997 |
15 |
| Canadian Energy Services LP | 72 |
7 |
| Schlumberger Technology Corporation | 10673 |
6 |
| Albemarle Corporation | 491 |
5 |
| M-I L.L.C. | 812 |
5 |
| Board of Regents, The University of Texas System | 5772 |
3 |
| Aramco Services Company | 3936 |
3 |
| Baker Hughes Holdings LLC | 3004 |
3 |
| BASF SE | 20904 |
2 |
| Chevron U.S.A. Inc. | 3945 |
2 |
| Bromine Compounds Ltd. | 189 |
2 |
| Dongying Taier Petrol Technology Co., Ltd | 4 |
2 |
| ExxonMobil Upstream Research Company | 2406 |
2 |
| Newpark Drilling Fluids LLC | 42 |
2 |
| Nfluids Inc. | 11 |
2 |
| SNF S.A.S. | 19 |
2 |
| Yangtze University | 57 |
2 |
| Nissan Chemical Corporation | 2000 |
2 |
| Sinomine Resources (US) Inc. | 7 |
2 |
| Other owners | 35 |