- All sections
- B - Performing operations; transporting
- 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: 97
10-year publication summary
|
3
|
4
|
4
|
12
|
11
|
13
|
5
|
9
|
9
|
1
|
| 2015 | 2016 | 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| Dyson Technology Limited | 3124 |
5 |
| Qwtip LLC | 54 |
5 |
| Techtronic Industries Co. Ltd. | 103 |
5 |
| Voith Patent GmbH | 2727 |
4 |
| Vulco, S.A. | 57 |
4 |
| Panasonic Intellectual Property Management Co., Ltd. | 27812 |
3 |
| Loesche GmbH | 78 |
3 |
| Mitsubishi Electric Corporation | 43934 |
2 |
| Bunri Incorporation | 28 |
2 |
| Merpro Tortek Limited | 5 |
2 |
| Sharp Kabushiki Kaisha | 18957 |
2 |
| Hyundai Motor Company | 19021 |
1 |
| Sumitomo Chemical Company, Limited | 8808 |
1 |
| Continental Automotive Systems, Inc. | 1163 |
1 |
| Uop LLC | 4083 |
1 |
| ExxonMobil Chemical Patents Inc. | 4286 |
1 |
| Takeda Pharmaceutical Company Limited | 2961 |
1 |
| AGCO Corporation | 1062 |
1 |
| Axis Co., Ltd. | 2 |
1 |
| Cameron International Corporation | 1305 |
1 |
| Other owners | 51 |