- All sections
- C - Chemistrymetallurgy
- C09K - Materials for applications not otherwise provided forapplications of materials not otherwise provided for
- C09K 8/90 - Compositions based on water or polar solvents containing organic compounds macromolecular compounds of natural origin, e.g. polysaccharides, cellulose
Patent holdings for IPC class C09K 8/90
Total number of patents in this class: 375
10-year publication summary
|
70
|
68
|
38
|
45
|
21
|
26
|
15
|
11
|
7
|
11
|
| 2016 | 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 | 2025 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| Halliburton Energy Services, Inc. | 20879 |
80 |
| Schlumberger Technology Corporation | 10705 |
23 |
| Baker Hughes Holdings LLC | 3007 |
22 |
| Saudi Arabian Oil Company | 13091 |
18 |
| Baker Hughes Incorporated | 5252 |
10 |
| Independence Oilfield Chemicals, LLC | 39 |
10 |
| Schlumberger Canada Limited | 7293 |
8 |
| Schlumberger Technology B.v. | 5166 |
8 |
| Services Petroliers Schlumberger | 5784 |
8 |
| Schlumberger Holdings Limited | 2831 |
6 |
| Lamberti SpA | 254 |
6 |
| Univar USA Inc. | 15 |
6 |
| Integrity Bio-chemicals, LLC | 54 |
6 |
| ENERGY SOLUTIONS (US) LLC, a Delaware limited liability company | 181 |
6 |
| Aramco Services Company | 3955 |
5 |
| Elkem AS | 61 |
5 |
| Nissan Chemical America Corporation | 63 |
5 |
| Oji Holdings Corporation | 718 |
5 |
| TouGas Oilfield Solutions GmbH | 33 |
5 |
| BASF SE | 20926 |
4 |
| Other owners | 129 |