- All sections
- C - Chemistry; metallurgy
- C23F - Non-mechanical removal of metallic material from surfaces; inhibiting corrosion of metallic material; inhibiting incrustation in general; multi-step processes for surface treatment of metallic material involving at least one process provided for in class and at least one process covered by subclass or or class
- C23F 11/04 - Inhibiting corrosion of metallic material by applying inhibitors to the surface in danger of corrosion or adding them to the corrosive agent in markedly acid liquids
Patent holdings for IPC class C23F 11/04
Total number of patents in this class: 258
10-year publication summary
|
16
|
27
|
34
|
31
|
29
|
35
|
18
|
15
|
11
|
3
|
| 2015 | 2016 | 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| Dorf Ketal Chemicals FZE | 238 |
40 |
| Halliburton Energy Services, Inc. | 20165 |
25 |
| Ecolab USA Inc. | 5190 |
20 |
| Fluid Energy Group Ltd. | 70 |
11 |
| Championx USA Inc. | 250 |
10 |
| Schlumberger Technology Corporation | 9690 |
7 |
| Henkel AG & Co. KGaA | 10129 |
5 |
| ChemTreat, Inc. | 198 |
5 |
| PetroChina Company Limited | 462 |
5 |
| ENERGY SOLUTIONS (US) LLC, a Delaware limited liability company | 211 |
4 |
| Agienic, Inc. | 21 |
3 |
| Arkema France | 3790 |
3 |
| M-I Drilling Fluids UK Limited | 90 |
3 |
| Saudi Arabian Oil Company | 11322 |
3 |
| X'aan Innovations Inc. | 7 |
3 |
| CURTIS, Philip, Anthony | 497 |
3 |
| Baker Hughes Holdings LLC | 3060 |
3 |
| General Electric Company | 18133 |
2 |
| Schlumberger Canada Limited | 6913 |
2 |
| Schlumberger Technology B.v. | 4951 |
2 |
| Other owners | 99 |