- 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: 872
10-year publication summary
|
74
|
85
|
67
|
57
|
54
|
55
|
64
|
46
|
50
|
45
|
| 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 | 2025 | 2026 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| Halliburton Energy Services, Inc. | 21259 |
110 |
| Saudi Arabian Oil Company | 14446 |
84 |
| Baker Hughes Holdings LLC | 3013 |
24 |
| Dorf Ketal Chemicals FZE | 195 |
23 |
| Championx LLC | 660 |
22 |
| Baker Hughes Oilfield Operations, LLC | 2564 |
20 |
| Schlumberger Technology Corporation | 12016 |
18 |
| Fluid Energy Group Ltd. | 56 |
18 |
| Dow Global Technologies LLC | 11106 |
16 |
| Ecolab USA Inc. | 5838 |
16 |
| Flex-Chem Holding Company, LLC | 34 |
16 |
| Championx USA Inc. | 172 |
16 |
| Aramco Services Company | 4189 |
15 |
| Schlumberger Canada Limited | 7629 |
13 |
| Baker Hughes Incorporated | 4852 |
13 |
| King Fahd University of Petroleum and Minerals | 1613 |
13 |
| Locus Solutions IPCo, LLC | 347 |
11 |
| Schlumberger Technology B.v. | 5292 |
10 |
| Rohm and Haas Company | 2952 |
10 |
| Akzo Nobel Chemicals International B.V. | 411 |
10 |
| Other owners | 394 |