- All sections
- C - Chemistrymetallurgy
- C09K - Materials for applications not otherwise provided forapplications of materials not otherwise provided for
- C09K 8/00 - Compositions for drilling of boreholes or wellsCompositions for treating boreholes or wells, e.g. for completion or for remedial operations
Patent holdings for IPC class C09K 8/00
Total number of patents in this class: 313
10-year publication summary
|
37
|
26
|
19
|
8
|
11
|
9
|
11
|
8
|
5
|
5
|
| 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 | 2025 | 2026 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| Halliburton Energy Services, Inc. | 21309 |
45 |
| Stepan Company | 565 |
16 |
| BASF SE | 21306 |
9 |
| Saudi Arabian Oil Company | 14305 |
9 |
| Schlumberger Technology Corporation | 11879 |
7 |
| Schlumberger Canada Limited | 7620 |
7 |
| Schlumberger Technology B.v. | 5299 |
7 |
| Services Petroliers Schlumberger | 6033 |
7 |
| Baker Hughes Incorporated | 4905 |
6 |
| Schlumberger Holdings Limited | 2684 |
5 |
| Dow Global Technologies LLC | 10994 |
5 |
| Aramco Services Company | 4192 |
5 |
| Prad Research and Development Limited | 2652 |
5 |
| Shell Internationale Research Maatschappij B.V. | 3394 |
4 |
| Shell Oil Company | 2068 |
4 |
| Flotek Chemistry, LLC | 115 |
4 |
| Fritz Industries, Inc. | 18 |
4 |
| M-I L.L.C. | 738 |
4 |
| 3m Innovative Properties Company | 17458 |
3 |
| CARBO Ceramics Inc. | 175 |
3 |
| Other owners | 154 |