- All sections
- B - Performing operationstransporting
- B01D - Separation
- B01D 21/18 - Construction of the scrapers or the driving mechanisms for settling tanks
Patent holdings for IPC class B01D 21/18
Total number of patents in this class: 88
10-year publication summary
|
5
|
4
|
5
|
8
|
9
|
7
|
5
|
6
|
3
|
2
|
| 2016 | 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 | 2025 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| LINKON TECHNOLOGY CO., LTD. (a legal entity) | 15 |
9 |
| Suido Kiko Kaisha., Ltd. | 8 |
6 |
| Brentwood Industries, Inc. | 110 |
3 |
| Bunri Incorporation | 30 |
3 |
| Outotec Oyj | 278 |
3 |
| RDP Technologies, Inc. | 33 |
3 |
| Kadant Black Clawson LLC | 38 |
3 |
| Parkson Corporation | 122 |
3 |
| Evoqua Water Technologies LLC | 917 |
2 |
| Ovivo Inc. | 158 |
2 |
| Sulzer Management AG | 660 |
2 |
| SW Feesaver, LLC | 4 |
2 |
| Ultra Aquatic Technology Pty Ltd | 3 |
2 |
| FLSmidth A/S | 772 |
2 |
| Dong Yang Water Equipment Ltd. Co. | 3 |
2 |
| Metso Finland Oy | 433 |
2 |
| United Conveyor LLC | 31 |
2 |
| BASF SE | 20926 |
1 |
| Honda Motor Co., Ltd. | 25219 |
1 |
| Hitachi, Ltd. | 15476 |
1 |
| Other owners | 34 |