- All sections
- B - Performing operationstransporting
- B01D - Separation
- B01D 24/44 - Feed or discharge devices for discharging filter cake, e.g. chutes
Patent holdings for IPC class B01D 24/44
Total number of patents in this class: 23
10-year publication summary
|
4
|
0
|
2
|
2
|
1
|
2
|
5
|
0
|
2
|
2
|
| 2016 | 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 | 2025 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| Philip Morris USA Inc. | 707 |
4 |
| Nissin Manufacturing Co., Ltd. | 25 |
2 |
| The Board of Trustees of the Leland Stanford Junior University | 6347 |
1 |
| Bunri Incorporation | 30 |
1 |
| C. Crane Company, Inc. | 9 |
1 |
| Fujita Corporation | 40 |
1 |
| Kanagawa Kiki Kogyo Co., Ltd. | 9 |
1 |
| Kuraray Co., Ltd. | 3491 |
1 |
| Mitsui O.S.K. Lines, Ltd. | 46 |
1 |
| Miura Co., Ltd. | 287 |
1 |
| Putsch GmbH & Co.KG | 5 |
1 |
| Satake Corporation | 292 |
1 |
| Seoul Metropolitan Government | 21 |
1 |
| Tsukishima Kikai Co., Ltd. | 114 |
1 |
| Tevet Water Technologies Ltd. | 3 |
1 |
| Kabushiki Kaisha Toshiba, doing business as Toshiba Corporation | 6274 |
1 |
| AGUA JAPAN Co., Ltd. | 2 |
1 |
| MOL Engineering Co., Ltd. | 2 |
1 |
| Tanigaki Shokai Co., Ltd. | 1 |
1 |
| Other owners | 0 |