- All sections
- C - Chemistrymetallurgy
- C09K - Materials for applications not otherwise provided forapplications of materials not otherwise provided for
- C09K 8/92 - Compositions for stimulating production by acting on the underground formation characterised by their form or by the form of their components, e.g. encapsulated material
Patent holdings for IPC class C09K 8/92
Total number of patents in this class: 595
10-year publication summary
|
51
|
71
|
39
|
35
|
31
|
17
|
15
|
16
|
13
|
7
|
| 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 | 2025 | 2026 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| Saudi Arabian Oil Company | 13949 |
59 |
| Halliburton Energy Services, Inc. | 21194 |
57 |
| Schlumberger Technology Corporation | 11483 |
54 |
| Schlumberger Canada Limited | 7553 |
44 |
| Schlumberger Technology B.v. | 5268 |
41 |
| Services Petroliers Schlumberger | 5977 |
41 |
| Schlumberger Holdings Limited | 2737 |
26 |
| Prad Research and Development Limited | 2679 |
23 |
| Aramco Services Company | 4162 |
19 |
| Baker Hughes Holdings LLC | 2985 |
18 |
| Flotek Chemistry, LLC | 116 |
11 |
| CARBO Ceramics Inc. | 231 |
9 |
| Innospec Limited | 382 |
7 |
| Research Triangle Institute | 415 |
6 |
| Johnson Matthey Public Limited Company | 1748 |
5 |
| King Fahd University of Petroleum & Minerals | 195 |
5 |
| RTI International | 21 |
5 |
| Baker Hughes, a GE Company, LLC | 2101 |
5 |
| Tracerco Limited | 89 |
5 |
| Baker Hughes Incorporated | 5042 |
4 |
| Other owners | 151 |