- All sections
- C - Chemistrymetallurgy
- C09K - Materials for applications not otherwise provided forapplications of materials not otherwise provided for
- C09K 8/528 - Compositions for preventing, limiting or eliminating depositions, e.g. for cleaning inorganic depositions, e.g. sulfates or carbonates
Patent holdings for IPC class C09K 8/528
Total number of patents in this class: 833
10-year publication summary
|
66
|
69
|
76
|
58
|
47
|
50
|
52
|
57
|
40
|
35
|
| 2016 | 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 | 2025 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| Halliburton Energy Services, Inc. | 20964 |
113 |
| Saudi Arabian Oil Company | 13409 |
71 |
| Baker Hughes Holdings LLC | 2999 |
25 |
| Dorf Ketal Chemicals FZE | 199 |
23 |
| Fluid Energy Group Ltd. | 59 |
18 |
| Dow Global Technologies LLC | 10437 |
17 |
| Baker Hughes Oilfield Operations, LLC | 2331 |
17 |
| Schlumberger Technology Corporation | 10898 |
16 |
| Championx USA Inc. | 178 |
16 |
| Baker Hughes Incorporated | 5246 |
14 |
| Aramco Services Company | 4033 |
14 |
| Ecolab USA Inc. | 5528 |
14 |
| Flex-Chem Holding Company, LLC | 33 |
14 |
| Championx LLC | 531 |
14 |
| Akzo Nobel Chemicals International B.V. | 435 |
13 |
| Schlumberger Canada Limited | 7369 |
11 |
| Rohm and Haas Company | 2907 |
11 |
| King Fahd University of Petroleum and Minerals | 1280 |
11 |
| Dorf Ketal Chemicals FZE | 52 |
11 |
| Schlumberger Technology B.v. | 5184 |
10 |
| Other owners | 380 |