- All sections
- B - Performing operationstransporting
- B04C - Apparatus using free vortex flow, e.g. cyclones
- B04C 5/12 - Construction of the overflow ducting, e.g. diffusing or spiral exits
Patent holdings for IPC class B04C 5/12
Total number of patents in this class: 100
10-year publication summary
|
4
|
12
|
11
|
13
|
5
|
9
|
8
|
6
|
1
|
4
|
| 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 | 2025 | 2026 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| Qwtip LLC | 69 |
6 |
| Dyson Technology Limited | 4016 |
5 |
| Techtronic Industries Co. Ltd. | 101 |
5 |
| Voith Patent GmbH | 2741 |
4 |
| Vulco, S.A. | 45 |
4 |
| Taiheiyo Engineering Corporation | 35 |
3 |
| Mitsubishi Electric Corporation | 48172 |
2 |
| Panasonic Intellectual Property Management Co., Ltd. | 34265 |
2 |
| Bunri Incorporation | 25 |
2 |
| Loesche GmbH | 79 |
2 |
| Merpro Tortek Limited | 5 |
2 |
| Waterco Limited | 21 |
2 |
| Sharp Kabushiki Kaisha | 18502 |
2 |
| Hyundai Motor Company | 24808 |
1 |
| Sumitomo Chemical Company, Limited | 8968 |
1 |
| Uop LLC | 4390 |
1 |
| ExxonMobil Chemical Patents Inc. | 3768 |
1 |
| Takeda Pharmaceutical Company Limited | 2700 |
1 |
| AGCO Corporation | 1167 |
1 |
| Axis Co., Ltd. | 2 |
1 |
| Other owners | 52 |