- All sections
- C - Chemistry; metallurgy
- C09K - Materials for applications not otherwise provided for; applications of materials not otherwise provided for
- C09K 8/76 - Eroding chemicals, e.g. acids combined with additives added for specific purposes for preventing or reducing fluid loss
Patent holdings for IPC class C09K 8/76
Total number of patents in this class: 122
10-year publication summary
|
6
|
13
|
9
|
8
|
11
|
4
|
11
|
3
|
1
|
1
|
| 2015 | 2016 | 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| Halliburton Energy Services, Inc. | 20165 |
27 |
| Baker Hughes Holdings LLC | 3060 |
9 |
| Schlumberger Canada Limited | 6913 |
6 |
| Schlumberger Technology B.v. | 4951 |
6 |
| Schlumberger Holdings Limited | 2947 |
6 |
| Saudi Arabian Oil Company | 11322 |
6 |
| Services Petroliers Schlumberger | 5426 |
6 |
| Prad Research and Development Limited | 2696 |
5 |
| CURTIS, Philip, Anthony | 497 |
5 |
| Baker Hughes, a GE Company, LLC | 2171 |
4 |
| Schlumberger Technology Corporation | 9690 |
3 |
| Baker Hughes Incorporated | 5689 |
2 |
| Aramco Services Company | 3504 |
2 |
| Chevron Phillips Chemical Company LP | 1779 |
2 |
| Ecopuro, LLC | 22 |
2 |
| King Fahd University of Petroleum and Minerals | 779 |
2 |
| Minex CRC Ltd | 20 |
2 |
| Nouryon Chemicals International B.V. | 508 |
2 |
| Specialty Operations France | 563 |
2 |
| Shell Internationale Research Maatschappij B.V. | 3792 |
1 |
| Other owners | 22 |