- 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: 85
10-year publication summary
|
7
|
8
|
4
|
3
|
10
|
13
|
11
|
8
|
1
|
2
|
| 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 | 2025 | 2026 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| Cornell Pump Company LLC | 81 |
6 |
| GEA Tuchenhagen GmbH | 146 |
5 |
| Rtx Corporation | 9946 |
4 |
| Smith & Loveless, Inc. | 117 |
3 |
| Waterous Company | 12 |
3 |
| Altop Patents B.V. | 3 |
3 |
| Hamilton Sundstrand Corporation | 5019 |
2 |
| Avent, Inc. | 931 |
2 |
| B.B.A. Participaties B.V. | 23 |
2 |
| Hale Products, Inc. | 80 |
2 |
| Jiangsu University | 1156 |
2 |
| Sulzer Management AG | 699 |
2 |
| Woodward, Inc. | 667 |
2 |
| Eaton Intelligent Power Limited | 6201 |
2 |
| PHINIA Jersey Holdings LLC | 373 |
2 |
| Halliburton Energy Services, Inc. | 21257 |
1 |
| SNECMA S.A. | 1147 |
1 |
| Pratt & Whitney Canada Corp. | 5356 |
1 |
| Rolls-Royce PLC | 3188 |
1 |
| Shimadzu Corporation | 6310 |
1 |
| Other owners | 38 |