- All sections
- C - Chemistry; metallurgy
- C09K - Materials for applications not otherwise provided for; applications of materials not otherwise provided for
- C09K 23/42 - Ethers, e.g. polyglycol ethers of alcohols or phenols
Patent holdings for IPC class C09K 23/42
Total number of patents in this class: 48
10-year publication summary
|
0
|
1
|
2
|
2
|
3
|
3
|
3
|
8
|
19
|
3
|
| 2015 | 2016 | 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| Lubrizol Advanced Materials, Inc. | 949 |
3 |
| Halliburton Energy Services, Inc. | 20165 |
2 |
| Dow Global Technologies LLC | 10147 |
2 |
| China Petroleum & Chemical Corporation | 1623 |
2 |
| Clariant International Ltd. | 978 |
2 |
| San Nopco Ltd. | 34 |
2 |
| Shanghai Research Institute of Petrochemical Technology Sinopec | 252 |
2 |
| Sphere Fluidics Limited | 63 |
2 |
| Stepan Company | 567 |
2 |
| Evonik Operations GmbH | 3879 |
2 |
| Advanced Wetting Technologies Pty Ltd | 12 |
2 |
| Miyoutech Co., Ltd. | 5 |
2 |
| Chevron U.S.A. Inc. | 3774 |
1 |
| Adeka Corporation | 1333 |
1 |
| Arkema France | 3790 |
1 |
| Asphalt Materials, Inc. | 20 |
1 |
| China National Petroleum Corporation | 245 |
1 |
| CNPC USA Corp. | 109 |
1 |
| Crystal, Inc.-PMC | 8 |
1 |
| Deciem Beauty Group Inc. | 272 |
1 |
| Other owners | 15 |