- All sections
- B - Performing operationstransporting
- B01D - Separation
- B01D 3/02 - Distillation or related exchange processes in which liquids are contacted with gaseous media, e.g. stripping in boilers or stills
Patent holdings for IPC class B01D 3/02
Total number of patents in this class: 174
10-year publication summary
|
23
|
22
|
22
|
23
|
18
|
15
|
14
|
11
|
12
|
4
|
| 2016 | 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 | 2025 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| Ecodyst, Inc. | 34 |
11 |
| 77 Vision Way Ltd | 22 |
8 |
| Research Foundation of the City University of New York | 418 |
5 |
| Sun Fresh Water, LLC | 7 |
5 |
| Halliburton Energy Services, Inc. | 20835 |
4 |
| Uop LLC | 4236 |
4 |
| Energy Integration, Inc. | 20 |
4 |
| Astec, Inc. | 49 |
3 |
| Chevron Phillips Chemical Company LP | 1837 |
3 |
| Desktop Metal, Inc. | 285 |
3 |
| ExtractCraft, LLC | 22 |
3 |
| GEA Wiegand GmbH | 27 |
3 |
| Municipal Enterprises Limited | 12 |
3 |
| Purestream Services, LLC | 21 |
3 |
| Colorado Extraction Systems, LLC | 7 |
3 |
| Lucas Lifecare, LLC | 5 |
3 |
| Aquarden Technologies APS | 20 |
2 |
| Idekontoret ApS | 4 |
2 |
| Instrumentation Scientifique de Laboratoire - I.s.l. | 11 |
2 |
| M. W. Kellogg Limited | 3 |
2 |
| Other owners | 98 |