- All sections
- C - Chemistrymetallurgy
- C09K - Materials for applications not otherwise provided forapplications of materials not otherwise provided for
- C09K 8/04 - Aqueous well-drilling compositions
Patent holdings for IPC class C09K 8/04
Total number of patents in this class: 464
10-year publication summary
|
25
|
37
|
62
|
37
|
28
|
24
|
13
|
13
|
7
|
8
|
| 2016 | 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 | 2025 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| Halliburton Energy Services, Inc. | 21090 |
98 |
| Saudi Arabian Oil Company | 13686 |
77 |
| Aramco Services Company | 4099 |
21 |
| M-I L.L.C. | 806 |
21 |
| Schlumberger Technology Corporation | 11075 |
13 |
| Schlumberger Canada Limited | 7440 |
13 |
| Services Petroliers Schlumberger | 5885 |
13 |
| Schlumberger Technology B.v. | 5224 |
12 |
| Schlumberger Holdings Limited | 2784 |
8 |
| Prad Research and Development Limited | 2687 |
8 |
| Baker Hughes Incorporated | 5172 |
7 |
| Baker Hughes Holdings LLC | 3002 |
6 |
| Multi-Chem Group, LLC | 69 |
5 |
| Stepan Company | 574 |
5 |
| Kemira Oyj | 1227 |
4 |
| Uniquem Inc. | 23 |
4 |
| Tecnologia Integral en Fluidos de Perforacion S.A. de C.V. | 7 |
4 |
| Borehole Seismic, LLC. | 11 |
4 |
| Secure Specialty Chemicals Corp. | 15 |
4 |
| Chevron U.S.A. Inc. | 4020 |
3 |
| Other owners | 134 |