- All sections
- C - Chemistry; metallurgy
- C09K - Materials for applications not otherwise provided for; applications 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: 593
10-year publication summary
|
29
|
41
|
45
|
76
|
86
|
59
|
64
|
33
|
35
|
13
|
| 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 |
107 |
| Saudi Arabian Oil Company | 11322 |
84 |
| Schlumberger Technology Corporation | 9690 |
22 |
| Aramco Services Company | 3504 |
20 |
| Baker Hughes Holdings LLC | 3060 |
18 |
| Chevron U.S.A. Inc. | 3774 |
17 |
| CURTIS, Philip, Anthony | 497 |
14 |
| Dorf Ketal Chemicals FZE | 238 |
11 |
| Schlumberger Canada Limited | 6913 |
10 |
| Schlumberger Technology B.v. | 4951 |
10 |
| Baker Hughes Incorporated | 5689 |
10 |
| Nissan Chemical America Corporation | 57 |
10 |
| Services Petroliers Schlumberger | 5426 |
10 |
| Tetra Technologies, Inc. | 90 |
10 |
| Baker Hughes, a GE Company, LLC | 2171 |
10 |
| Schlumberger Holdings Limited | 2947 |
9 |
| CARBO Ceramics Inc. | 248 |
7 |
| Prad Research and Development Limited | 2696 |
7 |
| Ecolab USA Inc. | 5190 |
6 |
| Beijing Huamei, Inc. | 58 |
6 |
| Other owners | 195 |