- All sections
- C - Chemistrymetallurgy
- C09K - Materials for applications not otherwise provided forapplications of materials not otherwise provided for
- C09K 8/46 - Compositions for cementing, e.g. for cementing casings into boreholesCompositions for plugging, e.g. for killing wells containing inorganic binders, e.g. Portland cement
Patent holdings for IPC class C09K 8/46
Total number of patents in this class: 450
10-year publication summary
|
27
|
23
|
48
|
42
|
38
|
33
|
11
|
34
|
27
|
4
|
| 2016 | 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 | 2025 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| Halliburton Energy Services, Inc. | 20466 |
164 |
| Saudi Arabian Oil Company | 12509 |
68 |
| Schlumberger Technology Corporation | 10296 |
26 |
| Schlumberger Canada Limited | 7167 |
17 |
| Schlumberger Technology B.v. | 5083 |
17 |
| Services Petroliers Schlumberger | 5645 |
17 |
| CURTIS, Philip, Anthony | 482 |
14 |
| Dorf Ketal Chemicals FZE | 239 |
14 |
| Aramco Services Company | 3771 |
5 |
| Baker Hughes Oilfield Operations, LLC | 2138 |
5 |
| Baker Hughes Holdings LLC | 3009 |
5 |
| COTTRILL, Emily Elizabeth Helen | 41 |
4 |
| Chevron U.S.A. Inc. | 3864 |
3 |
| Board of Regents, The University of Texas System | 5641 |
3 |
| China Petroleum & Chemical Corporation | 1793 |
3 |
| Elkem AS | 62 |
3 |
| Kerneos | 33 |
3 |
| Eavor Technologies Inc. | 84 |
3 |
| Restone AS | 12 |
3 |
| TURNER, Craig, Robert | 142 |
3 |
| Other owners | 70 |