- All sections
- B - Performing operationstransporting
- B01D - Separation
- B01D 21/28 - Mechanical auxiliary equipment for acceleration of sedimentation, e.g. by vibrators or the like
Patent holdings for IPC class B01D 21/28
Total number of patents in this class: 405
10-year publication summary
|
44
|
51
|
43
|
34
|
31
|
37
|
34
|
15
|
13
|
16
|
| 2016 | 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 | 2025 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| FloDesign Sonics, Inc. | 161 |
81 |
| The Charles Stark Draper Laboratory, Inc. | 930 |
17 |
| Orege | 37 |
8 |
| Aenitis Technologies | 19 |
7 |
| Halliburton Energy Services, Inc. | 20977 |
6 |
| Hitachi, Ltd. | 15599 |
6 |
| Sanuwave, Inc. | 73 |
6 |
| Triad National Security, LLC | 616 |
6 |
| Sepro Mineral Systems Corp. | 17 |
5 |
| Applied Cells Inc, DBA Applied Cells | 26 |
5 |
| Eco Metals Recovery (Holding) Limited | 5 |
5 |
| Biomet Biologics, LLC | 77 |
4 |
| Biomet, Inc. | 128 |
4 |
| Biomet Manufacturing, LLC | 1018 |
4 |
| Derrick Corporation | 247 |
4 |
| Saudi Arabian Oil Company | 13428 |
4 |
| ZB Manufacturing, LLC | 113 |
4 |
| Schlumberger Technology Corporation | 10914 |
3 |
| Centre National de La Recherche Scientifique | 10576 |
3 |
| Seiko Epson Corporation | 19670 |
3 |
| Other owners | 220 |