- All sections
- C - Chemistrymetallurgy
- C09K - Materials for applications not otherwise provided forapplications of materials not otherwise provided for
- C09K 8/66 - Compositions based on water or polar solvents
Patent holdings for IPC class C09K 8/66
Total number of patents in this class: 630
10-year publication summary
|
45
|
76
|
86
|
59
|
64
|
33
|
37
|
37
|
36
|
12
|
| 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 | 2025 | 2026 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| Halliburton Energy Services, Inc. | 21338 |
99 |
| Saudi Arabian Oil Company | 14235 |
98 |
| Aramco Services Company | 4195 |
25 |
| Schlumberger Technology Corporation | 11818 |
24 |
| ExxonMobil Technology and Engineering Company | 1356 |
21 |
| Chevron U.S.A. Inc. | 4140 |
18 |
| Baker Hughes Holdings LLC | 3023 |
15 |
| Tetra Technologies, Inc. | 107 |
12 |
| Dorf Ketal Chemicals FZE | 197 |
11 |
| Nissan Chemical America Corporation | 64 |
10 |
| Baker Hughes, a GE Company, LLC | 2056 |
10 |
| CARBO Ceramics Inc. | 176 |
9 |
| China National Petroleum Corporation | 636 |
9 |
| Beijing Huamei, Inc. | 132 |
9 |
| Schlumberger Canada Limited | 7606 |
8 |
| Schlumberger Technology B.v. | 5298 |
8 |
| Baker Hughes Incorporated | 4934 |
8 |
| Services Petroliers Schlumberger | 6024 |
8 |
| Schlumberger Holdings Limited | 2699 |
7 |
| Prad Research and Development Limited | 2661 |
7 |
| Other owners | 214 |