- All sections
- C - Chemistry; metallurgy
- C09K - Materials for applications not otherwise provided for; applications of materials not otherwise provided for
- C09K 8/00 - Compositions for drilling of boreholes or wells; Compositions for treating boreholes or wells, e.g. for completion or for remedial operations
Patent holdings for IPC class C09K 8/00
Total number of patents in this class: 333
10-year publication summary
|
29
|
33
|
37
|
26
|
18
|
8
|
12
|
9
|
9
|
1
|
| 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 |
50 |
| Stepan Company | 567 |
16 |
| Saudi Arabian Oil Company | 11322 |
13 |
| BASF SE | 19740 |
10 |
| Baker Hughes Incorporated | 5689 |
8 |
| Schlumberger Technology Corporation | 9690 |
7 |
| Schlumberger Canada Limited | 6913 |
7 |
| Schlumberger Technology B.v. | 4951 |
6 |
| Services Petroliers Schlumberger | 5426 |
6 |
| Schlumberger Holdings Limited | 2947 |
5 |
| Aramco Services Company | 3504 |
5 |
| Flotek Chemistry, LLC | 120 |
5 |
| Fluorchemie GmbH Frankfurt | 16 |
5 |
| M-I L.L.C. | 893 |
5 |
| Prad Research and Development Limited | 2696 |
5 |
| CURTIS, Philip, Anthony | 497 |
5 |
| Shell Internationale Research Maatschappij B.V. | 3792 |
4 |
| Shell Oil Company | 2196 |
4 |
| CARBO Ceramics Inc. | 248 |
4 |
| Fritz Industries, Inc. | 11 |
4 |
| Other owners | 159 |