- All sections
- C - Chemistrymetallurgy
- C09K - Materials for applications not otherwise provided forapplications of materials not otherwise provided for
- C09K 8/68 - Compositions based on water or polar solvents containing organic compounds
Patent holdings for IPC class C09K 8/68
Total number of patents in this class: 2381
10-year publication summary
|
266
|
223
|
219
|
198
|
175
|
137
|
103
|
78
|
67
|
25
|
| 2016 | 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 | 2025 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| Halliburton Energy Services, Inc. | 20749 |
455 |
| Saudi Arabian Oil Company | 12858 |
131 |
| Baker Hughes Holdings LLC | 3007 |
83 |
| Schlumberger Technology Corporation | 10627 |
77 |
| Schlumberger Canada Limited | 7235 |
77 |
| Schlumberger Technology B.v. | 5148 |
71 |
| Services Petroliers Schlumberger | 5756 |
71 |
| Schlumberger Holdings Limited | 2841 |
60 |
| CURTIS, Philip, Anthony | 440 |
51 |
| Prad Research and Development Limited | 2694 |
50 |
| Baker Hughes Incorporated | 5289 |
46 |
| ENERGY SOLUTIONS (US) LLC, a Delaware limited liability company | 181 |
44 |
| Aramco Services Company | 3910 |
40 |
| Chevron U.S.A. Inc. | 3929 |
39 |
| BASF SE | 20777 |
28 |
| Independence Oilfield Chemicals, LLC | 39 |
27 |
| S.p.c.m. SA | 249 |
27 |
| Rhodia Operations | 1582 |
21 |
| SNF Group | 348 |
20 |
| China National Petroleum Corporation | 418 |
18 |
| Other owners | 945 |