- All sections
- B - Performing operationstransporting
- B01D - Separation
- B01D 29/94 - Filters with filtering elements stationary during filtration, e.g. pressure or suction filters, not covered by groups Filtering elements therefor having feed or discharge devices for discharging the filter cake, e.g. chutes
Patent holdings for IPC class B01D 29/94
Total number of patents in this class: 136
10-year publication summary
|
9
|
13
|
7
|
16
|
10
|
14
|
17
|
17
|
10
|
7
|
| 2016 | 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 | 2025 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| Gaudfrin | 21 |
7 |
| Philip Morris USA Inc. | 703 |
4 |
| HYDAC Process Technology GmbH | 89 |
4 |
| Inheriting Earth Limited | 28 |
4 |
| Alconbury Weston Ltd | 4 |
3 |
| Boll & Kirch Filterbau GmbH | 38 |
3 |
| Cargill, Incorporated | 2897 |
3 |
| Break Polymer SRL | 3 |
3 |
| Ettlinger Kunststoffmaschinen GmbH | 10 |
2 |
| Haier US Appliance Solutions, Inc. | 3594 |
2 |
| MAHLE International GmbH | 2765 |
2 |
| Nissin Manufacturing Co., Ltd. | 23 |
2 |
| Röhren- und Pumpenwerk Bauer Ges.m.b.H. | 35 |
2 |
| Satake Corporation | 292 |
2 |
| Saudi Arabian Oil Company | 13044 |
2 |
| UTS Biogastechnik GmbH | 28 |
2 |
| Frog Creek Partners, LLC | 9 |
2 |
| Ceco Environmental IP Inc | 79 |
2 |
| Cogar Manufacturing, Inc. | 3 |
2 |
| PlanetCare d.o.o. | 9 |
2 |
| Other owners | 81 |