- All sections
- B - Performing operationstransporting
- B01D - Separation
- B01D 3/40 - Extractive distillation
Patent holdings for IPC class B01D 3/40
Total number of patents in this class: 327
10-year publication summary
|
23
|
33
|
35
|
28
|
23
|
24
|
19
|
25
|
12
|
16
|
| 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 | 2025 | 2026 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| BASF SE | 21320 |
16 |
| Uop LLC | 4397 |
13 |
| Sulzer Management AG | 712 |
13 |
| Natural Extraction Systems, LLC | 124 |
10 |
| Evonik Oxeno GmbH & Co. KG | 366 |
9 |
| AMT International, Inc. | 39 |
8 |
| CPC Corporation, Taiwan | 74 |
8 |
| China Petroleum & Chemical Corporation | 2169 |
7 |
| Lummus Technology Inc. | 284 |
7 |
| SABIC Global Technologies B.V. | 4614 |
7 |
| LG Chem, Ltd. | 17956 |
6 |
| Daicel Corporation | 2555 |
6 |
| Saudi Arabian Oil Company | 14329 |
6 |
| Zeon Corporation | 4167 |
6 |
| Daikin Industries, Ltd. | 10513 |
5 |
| ExxonMobil Chemical Patents Inc. | 3766 |
5 |
| Archer Daniels Midland Company | 1075 |
5 |
| LanzaTech, Inc. | 331 |
5 |
| Sustainable Energy Solutions, Inc. | 13 |
5 |
| Dow Global Technologies LLC | 11008 |
4 |
| Other owners | 176 |