- All sections
- C - Chemistry; metallurgy
- C09K - Materials for applications not otherwise provided for; applications of materials not otherwise provided for
- C09K 8/46 - Compositions for cementing, e.g. for cementing casings into boreholes; Compositions 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: 433
10-year publication summary
|
38
|
27
|
23
|
48
|
42
|
38
|
33
|
11
|
34
|
10
|
| 2015 | 2016 | 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| Halliburton Energy Services, Inc. | 20165 |
164 |
| Saudi Arabian Oil Company | 11322 |
67 |
| Schlumberger Technology Corporation | 9690 |
24 |
| Schlumberger Canada Limited | 6913 |
16 |
| Schlumberger Technology B.v. | 4951 |
16 |
| Services Petroliers Schlumberger | 5426 |
16 |
| CURTIS, Philip, Anthony | 497 |
14 |
| Dorf Ketal Chemicals FZE | 238 |
8 |
| Aramco Services Company | 3504 |
5 |
| Baker Hughes Holdings LLC | 3060 |
5 |
| Baker Hughes Oilfield Operations, LLC | 1885 |
4 |
| COTTRILL, Emily Elizabeth Helen | 41 |
4 |
| Board of Regents, The University of Texas System | 5370 |
3 |
| Elkem AS | 66 |
3 |
| Kerneos | 36 |
3 |
| Restone AS | 12 |
3 |
| TURNER, Craig, Robert | 152 |
3 |
| Schlumberger Holdings Limited | 2947 |
2 |
| Baker Hughes Incorporated | 5689 |
2 |
| Shell Oil Company | 2196 |
2 |
| Other owners | 69 |