- 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: 196
10-year publication summary
|
14
|
20
|
15
|
19
|
10
|
11
|
10
|
17
|
23
|
17
|
| 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 | 2025 | 2026 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| Ebara Corporation | 2329 |
19 |
| Mitsubishi Heavy Industries, Ltd. | 9139 |
7 |
| NTN Corporation | 4915 |
6 |
| Nuhn Industries Limited | 62 |
6 |
| Weir Minerals Australia, Ltd. | 310 |
6 |
| Flowserve Pte. Ltd | 380 |
6 |
| Weir Slurry Group, Inc. | 62 |
5 |
| Flowserve Management Company | 193 |
4 |
| Nikkiso Co., Ltd. | 792 |
4 |
| Hamilton Sundstrand Corporation | 5014 |
3 |
| IHI Corporation | 3535 |
3 |
| JMS Co., Ltd. | 357 |
3 |
| Arianegroup SAS | 539 |
3 |
| NSK Ltd. | 2832 |
2 |
| Kawasaki Heavy Industries, Limited | 1674 |
2 |
| Air Water Inc. | 168 |
2 |
| The Cleveland Clinic Foundation | 1576 |
2 |
| GEA TDS GmbH | 53 |
2 |
| Indiana University Research and Technology Corporation | 783 |
2 |
| KSB Aktiengesellschaft | 154 |
2 |
| Other owners | 107 |