- 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: 386
10-year publication summary
|
50
|
60
|
48
|
38
|
35
|
42
|
36
|
15
|
14
|
4
|
| 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. | 919 |
16 |
| Orege | 35 |
8 |
| Aenitis Technologies | 17 |
7 |
| Halliburton Energy Services, Inc. | 20684 |
6 |
| Hitachi, Ltd. | 15383 |
6 |
| Sanuwave, Inc. | 90 |
6 |
| Triad National Security, LLC | 602 |
6 |
| Sepro Mineral Systems Corp. | 17 |
5 |
| Applied Cells Inc, DBA Applied Cells | 23 |
5 |
| Biomet Biologics, LLC | 78 |
4 |
| Biomet, Inc. | 130 |
4 |
| Biomet Manufacturing, LLC | 1026 |
4 |
| Derrick Corporation | 245 |
4 |
| Saudi Arabian Oil Company | 12785 |
4 |
| ZB Manufacturing, LLC | 119 |
4 |
| Eco Metals Recovery (Holding) Limited | 4 |
4 |
| Schlumberger Technology Corporation | 10591 |
3 |
| Centre National de La Recherche Scientifique | 10266 |
3 |
| Seiko Epson Corporation | 19225 |
3 |
| Other owners | 203 |