- All sections
- B - Performing operations; transporting
- B01D - Separation
- B01D 1/22 - Evaporating by bringing a thin layer of the liquid into contact with a heated surface
Patent holdings for IPC class B01D 1/22
Total number of patents in this class: 460
10-year publication summary
|
29
|
36
|
28
|
33
|
37
|
57
|
44
|
36
|
38
|
9
|
| 2015 | 2016 | 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| Alfa Laval Corporate AB | 1265 |
14 |
| Verno Holdings, LLC | 31 |
14 |
| Ecovap, Inc. | 18 |
11 |
| List Technology AG | 42 |
9 |
| Cleamix Oy | 14 |
8 |
| Dow Global Technologies LLC | 10147 |
7 |
| DEKA Products Limited Partnership | 1640 |
7 |
| Kansai Chemical Engineering Co., Ltd. | 39 |
6 |
| Bill & Melinda Gates Foundation, William H. Gates III and Melinda F. Gates, both US citizens | 28 |
5 |
| King Abdullah University of Science and Technology | 1703 |
5 |
| List Holding AG | 42 |
5 |
| Aquaback Technologies, Inc. | 8 |
4 |
| Arkema France | 3790 |
4 |
| Buss-sms-canzler GmbH | 11 |
4 |
| Cargill, Incorporated | 2835 |
4 |
| Cot-Clean Oil Technology AB | 7 |
4 |
| Ecodyst, Inc. | 36 |
4 |
| Lenzing Aktiengesellschaft | 529 |
4 |
| UPM-Kymmene Corporation | 868 |
4 |
| Coflo Technologies LLC | 4 |
4 |
| Other owners | 333 |