- All sections
- B - Performing operationstransporting
- B01D - Separation
- B01D 53/84 - Biological processes
Patent holdings for IPC class B01D 53/84
Total number of patents in this class: 415
10-year publication summary
|
25
|
29
|
42
|
43
|
28
|
46
|
27
|
36
|
42
|
23
|
| 2016 | 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 | 2025 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| Paqell B.V. | 27 |
13 |
| Evoqua Water Technologies LLC | 918 |
12 |
| Saipem S.p.A. | 520 |
12 |
| LanzaTech, Inc. | 350 |
11 |
| Clean Air Zone Inc. | 17 |
11 |
| CO2 Solutions Inc. | 25 |
7 |
| Novozymes A/S | 3329 |
6 |
| Hyundai Motor Company | 22257 |
5 |
| Korea District Heating Corp. | 29 |
5 |
| Nuorganics LLC | 18 |
5 |
| Unconventional Gas Solutions, LLC | 12 |
5 |
| Clean Air-Engineering - Maritime, Inc. | 14 |
4 |
| Guangdong University of Technology | 589 |
4 |
| Indian Oil Corporation Limited | 335 |
4 |
| Paques I.P. B.V. | 67 |
4 |
| Chio Kang Medical, Inc. | 29 |
4 |
| Qiaokang Biotech (Guangdong) Co., LTD. | 29 |
4 |
| China Petroleum & Chemical Corporation | 1908 |
3 |
| LABORATORI FABRICI S.r.l. | 32 |
3 |
| Hunan Sakal Environmental Science and Technology Co., Ltd. | 16 |
3 |
| Other owners | 290 |