- All sections
- B - Performing operationstransporting
- B01D - Separation
- B01D 21/34 - Controlling the feed distributionControlling the liquid level
Patent holdings for IPC class B01D 21/34
Total number of patents in this class: 241
10-year publication summary
|
31
|
27
|
18
|
29
|
18
|
19
|
23
|
11
|
8
|
9
|
| 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 | 2025 | 2026 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| Resolution Medical LLC | 21 |
7 |
| Terumo BCT, Inc. | 481 |
5 |
| RIT Venture Fund I, LLC | 9 |
5 |
| Snyder, Steve | 9 |
5 |
| Terry, David | 10 |
5 |
| Westbrook, Greg | 9 |
5 |
| Evoqua Water Technologies LLC | 928 |
4 |
| Nanoshell Company, LLC | 14 |
4 |
| Saudi Arabian Oil Company | 14390 |
4 |
| Vulco, S.A. | 43 |
4 |
| CNX Resources Corporation | 60 |
4 |
| Infinite Automated Solutions LLC | 5 |
4 |
| Batfer Investment S.A. | 37 |
4 |
| United Conveyor LLC | 35 |
4 |
| Halliburton Energy Services, Inc. | 21299 |
3 |
| Donaldson Company, Inc. | 1611 |
3 |
| Fenwal, Inc. | 708 |
3 |
| Invent Umwelt-und Verfahrenstechnik AG | 125 |
3 |
| ITT Bornemann GmbH | 25 |
3 |
| Liberty Evans, LLC | 11 |
3 |
| Other owners | 159 |