- All sections
- F - Mechanical engineeringlightingheatingweaponsblasting
- F04D - Non-positive-displacement pumps
- F04D 1/00 - Radial-flow pumps, e.g. centrifugal pumpsHelico-centrifugal pumps
Patent holdings for IPC class F04D 1/00
Total number of patents in this class: 562
10-year publication summary
|
97
|
87
|
64
|
38
|
42
|
38
|
48
|
46
|
67
|
38
|
| 2016 | 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 | 2025 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| Grundfos Holding A/S | 556 |
31 |
| KSB SE & Co. KGaA | 700 |
20 |
| Sulzer Management AG | 662 |
15 |
| Levitronix GmbH | 64 |
9 |
| Pierburg Pump Technology GmbH | 323 |
9 |
| Halliburton Energy Services, Inc. | 20891 |
8 |
| Cooler Master Co., Ltd. | 227 |
8 |
| Zhejiang Sanhua Automotive Components Co., Ltd. | 297 |
8 |
| Nuovo Pignone Tecnologie S.r.l. | 973 |
8 |
| Ebara Corporation | 2169 |
7 |
| LG Electronics Inc. | 73021 |
6 |
| KSB Aktiengesellschaft | 163 |
6 |
| Weir Minerals Australia, Ltd. | 308 |
6 |
| Terumo Kabushiki Kaisha | 5530 |
5 |
| Bühler Motor GmbH | 123 |
5 |
| Fluid Handling LLC | 244 |
5 |
| ITT Manufacturing Enterprises LLC | 406 |
5 |
| MAHLE International GmbH | 2770 |
5 |
| Nidec GPM GmbH | 140 |
5 |
| Wilo SE | 194 |
5 |
| Other owners | 386 |