- 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: 825
10-year publication summary
|
85
|
74
|
85
|
67
|
57
|
54
|
55
|
64
|
43
|
26
|
| 2016 | 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 | 2025 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| Halliburton Energy Services, Inc. | 20749 |
113 |
| Saudi Arabian Oil Company | 12858 |
69 |
| Baker Hughes Holdings LLC | 3007 |
25 |
| Dorf Ketal Chemicals FZE | 196 |
23 |
| Fluid Energy Group Ltd. | 57 |
18 |
| Dow Global Technologies LLC | 10354 |
17 |
| Baker Hughes Oilfield Operations, LLC | 2269 |
17 |
| Championx USA Inc. | 185 |
16 |
| Baker Hughes Incorporated | 5289 |
14 |
| Aramco Services Company | 3910 |
14 |
| Schlumberger Technology Corporation | 10627 |
13 |
| Akzo Nobel Chemicals International B.V. | 433 |
13 |
| Ecolab USA Inc. | 5451 |
13 |
| Flex-Chem Holding Company, LLC | 32 |
13 |
| Championx LLC | 489 |
13 |
| Schlumberger Canada Limited | 7235 |
11 |
| Schlumberger Technology B.v. | 5148 |
11 |
| Rohm and Haas Company | 2906 |
11 |
| King Fahd University of Petroleum and Minerals | 1145 |
11 |
| Services Petroliers Schlumberger | 5756 |
11 |
| Other owners | 379 |