- All sections
- F - Mechanical engineeringlightingheatingweaponsblasting
- F04D - Non-positive-displacement pumps
- F04D 9/04 - PrimingPreventing vapour lock using priming pumpsPrimingPreventing vapour lock using booster pumps to prevent vapour lock
Patent holdings for IPC class F04D 9/04
Total number of patents in this class: 82
10-year publication summary
|
7
|
7
|
8
|
4
|
3
|
10
|
13
|
10
|
7
|
0
|
| 2016 | 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 | 2025 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| GEA Tuchenhagen GmbH | 147 |
5 |
| Cornell Pump Company LLC | 66 |
4 |
| Rtx Corporation | 9319 |
4 |
| Smith & Loveless, Inc. | 109 |
3 |
| Waterous Company | 12 |
3 |
| Altop Patents B.V. | 3 |
3 |
| Hamilton Sundstrand Corporation | 4836 |
2 |
| Hale Products, Inc. | 78 |
2 |
| Jiangsu University | 1093 |
2 |
| Microfluidics International Corporation | 26 |
2 |
| Rio boxx Holding B.V. | 5 |
2 |
| Sulzer Management AG | 661 |
2 |
| Woodward, Inc. | 644 |
2 |
| Eaton Intelligent Power Limited | 5976 |
2 |
| PHINIA Jersey Holdings LLC | 361 |
2 |
| Halliburton Energy Services, Inc. | 20788 |
1 |
| SNECMA S.A. | 1145 |
1 |
| Pratt & Whitney Canada Corp. | 4663 |
1 |
| Rolls-Royce PLC | 3075 |
1 |
| Shimadzu Corporation | 6150 |
1 |
| Other owners | 37 |