- All sections
- C - Chemistry; metallurgy
- C09K - Materials for applications not otherwise provided for; applications of materials not otherwise provided for
- C09K 8/78 - Eroding chemicals, e.g. acids combined with additives added for specific purposes for preventing sealing
Patent holdings for IPC class C09K 8/78
Total number of patents in this class: 35
10-year publication summary
|
5
|
1
|
1
|
4
|
0
|
2
|
2
|
1
|
1
|
0
|
| 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 |
12 |
| Saudi Arabian Oil Company | 11322 |
4 |
| Schlumberger Technology Corporation | 9690 |
2 |
| Kureha Corporation | 1026 |
2 |
| COTTRILL, Emily Elizabeth Helen | 41 |
2 |
| Locus Solutions IPCo, LLC | 233 |
2 |
| Schlumberger Canada Limited | 6913 |
1 |
| Schlumberger Technology B.v. | 4951 |
1 |
| Baker Hughes Incorporated | 5689 |
1 |
| Aramco Services Company | 3504 |
1 |
| Cleansorb Limited | 35 |
1 |
| Sasol Performance Chemicals GmbH | 33 |
1 |
| Services Petroliers Schlumberger | 5426 |
1 |
| TouGas Oilfield Solutions GmbH | 32 |
1 |
| CURTIS, Philip, Anthony | 497 |
1 |
| TURNER, Craig, Robert | 152 |
1 |
| Dorf Ketal Chemicals FZE | 238 |
1 |
| Other owners | 0 |