- All sections
- B - Performing operationstransporting
- B01D - Separation
- B01D 3/34 - Distillation or related exchange processes in which liquids are contacted with gaseous media, e.g. stripping with one or more auxiliary substances
Patent holdings for IPC class B01D 3/34
Total number of patents in this class: 475
10-year publication summary
|
44
|
46
|
43
|
40
|
42
|
39
|
36
|
39
|
23
|
9
|
| 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 | 2025 | 2026 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| Natural Extraction Systems, LLC | 124 |
20 |
| Magema Technology, LLC | 39 |
20 |
| Cargill, Incorporated | 2963 |
12 |
| Gradiant Corporation | 147 |
12 |
| BASF SE | 21303 |
11 |
| Uop LLC | 4393 |
9 |
| Saudi Arabian Oil Company | 14207 |
7 |
| Massachusetts Institute of Technology | 10239 |
6 |
| Siemens AG | 24033 |
5 |
| Covestro Deutschland AG | 2831 |
5 |
| Blue Planet Systems Corporation | 75 |
5 |
| LG Chem, Ltd. | 17921 |
4 |
| 8 Rivers Capital, LLC | 232 |
4 |
| Kurita Water Industries Ltd. | 1283 |
4 |
| Process Limited | 11 |
4 |
| Stamicarbon B.V. | 319 |
4 |
| Yara International ASA | 901 |
4 |
| ExxonMobil Chemical Patents Inc. | 3786 |
3 |
| Dow Global Technologies LLC | 10930 |
3 |
| Commissariat à l'énergie atomique et aux energies alternatives | 11127 |
3 |
| Other owners | 330 |