- All sections
- C - Chemistry; metallurgy
- C09K - Materials for applications not otherwise provided for; applications 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: 571
10-year publication summary
|
48
|
54
|
57
|
75
|
43
|
38
|
31
|
18
|
16
|
7
|
| 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 |
61 |
| Schlumberger Technology Corporation | 9690 |
53 |
| Saudi Arabian Oil Company | 11322 |
50 |
| Schlumberger Canada Limited | 6913 |
43 |
| Schlumberger Technology B.v. | 4951 |
40 |
| Services Petroliers Schlumberger | 5426 |
40 |
| Schlumberger Holdings Limited | 2947 |
26 |
| Prad Research and Development Limited | 2696 |
23 |
| Aramco Services Company | 3504 |
20 |
| Baker Hughes Holdings LLC | 3060 |
18 |
| Flotek Chemistry, LLC | 120 |
11 |
| CARBO Ceramics Inc. | 248 |
7 |
| Innospec Limited | 308 |
7 |
| Research Triangle Institute | 389 |
6 |
| Johnson Matthey Public Limited Company | 1852 |
5 |
| RTI International | 20 |
5 |
| Baker Hughes, a GE Company, LLC | 2171 |
5 |
| Tracerco Limited | 76 |
5 |
| Baker Hughes Incorporated | 5689 |
4 |
| BASF SE | 19740 |
4 |
| Other owners | 138 |