- All sections
- B - Performing operations; transporting
- B01D - Separation
- B01D 3/38 - Steam distillation
Patent holdings for IPC class B01D 3/38
Total number of patents in this class: 204
10-year publication summary
|
7
|
12
|
16
|
28
|
24
|
25
|
23
|
26
|
16
|
10
|
| 2015 | 2016 | 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| Dow Global Technologies LLC | 10147 |
9 |
| LG Chem, Ltd. | 17205 |
6 |
| Rohm and Haas Company | 2805 |
6 |
| Pierson Capital Environmental (Beijing) Limited | 9 |
6 |
| Topsoe A/S | 732 |
6 |
| ExxonMobil Chemical Patents Inc. | 4286 |
4 |
| Syncrude Canada Ltd. in Trust for The Owners of The Syncrude Project, AS such Owners Exist NOW and in The Future | 72 |
4 |
| XDI Holdings, LLC | 68 |
4 |
| Dow Technology Investments LLC | 270 |
3 |
| Aromator LLC | 3 |
3 |
| Casale SA | 572 |
3 |
| Natural Extraction Systems, LLC | 93 |
3 |
| Shenzhen Zofu Technology Co., Ltd. | 9 |
3 |
| Norwegian Technology AS | 3 |
3 |
| Desmet Belgium | 29 |
3 |
| Shell Internationale Research Maatschappij B.V. | 3792 |
2 |
| Shell Oil Company | 2196 |
2 |
| Uop LLC | 4083 |
2 |
| Aak AB | 162 |
2 |
| Basell Polyolefine GmbH | 575 |
2 |
| Other owners | 128 |