- All sections
- F - Mechanical engineeringlightingheatingweaponsblasting
- F04D - Non-positive-displacement pumps
- F04D 7/02 - Pumps adapted for handling specific fluids, e.g. by selection of specific materials for pumps or pump parts of centrifugal type
Patent holdings for IPC class F04D 7/02
Total number of patents in this class: 172
10-year publication summary
|
14
|
12
|
18
|
12
|
18
|
8
|
10
|
10
|
15
|
12
|
| 2016 | 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 | 2025 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| Ebara Corporation | 2176 |
14 |
| NTN Corporation | 4968 |
6 |
| Weir Minerals Australia, Ltd. | 307 |
6 |
| Weir Slurry Group, Inc. | 67 |
6 |
| Nuhn Industries Limited | 58 |
5 |
| Flowserve Pte. Ltd | 354 |
5 |
| Mitsubishi Heavy Industries, Ltd. | 8764 |
3 |
| Hamilton Sundstrand Corporation | 4900 |
3 |
| Flowserve Management Company | 192 |
3 |
| IHI Corporation | 3449 |
3 |
| JMS Co., Ltd. | 376 |
3 |
| Arianegroup SAS | 528 |
3 |
| Siemens AG | 24437 |
2 |
| Kawasaki Heavy Industries, Limited | 1646 |
2 |
| Air Water Inc. | 144 |
2 |
| Boulden Company, Inc. | 5 |
2 |
| The Cleveland Clinic Foundation | 1572 |
2 |
| GEA TDS GmbH | 70 |
2 |
| Indiana University Research and Technology Corporation | 799 |
2 |
| KSB Aktiengesellschaft | 162 |
2 |
| Other owners | 96 |