- All sections
- F - Mechanical engineeringlightingheatingweaponsblasting
- F04D - Non-positive-displacement pumps
- F04D 29/54 - Fluid-guiding means, e.g. diffusers
Patent holdings for IPC class F04D 29/54
Total number of patents in this class: 2105
10-year publication summary
|
260
|
281
|
165
|
171
|
102
|
129
|
109
|
119
|
104
|
89
|
| 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 | 2025 | 2026 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| Rtx Corporation | 10127 |
234 |
| Safran Aircraft Engines | 6727 |
117 |
| General Electric Company | 13915 |
96 |
| GE Infrastructure Technology, LLC | 6159 |
67 |
| IHI Corporation | 3527 |
49 |
| Pratt & Whitney Canada Corp. | 5517 |
44 |
| Mitsubishi Electric Corporation | 48172 |
38 |
| MTU Aero Engines AG | 731 |
31 |
| ebm-papst Mulfingen GmbH & Co. KG | 497 |
30 |
| Siemens AG | 23996 |
25 |
| Mitsubishi Heavy Industries, Ltd. | 9168 |
25 |
| Safran Aero Boosters SA | 185 |
25 |
| Delta Electronics, Inc. | 2843 |
23 |
| Snecma | 1058 |
23 |
| Mitsubishi Power, Ltd. | 1833 |
23 |
| SNECMA S.A. | 1145 |
22 |
| Denso Corporation | 25645 |
22 |
| Rolls-Royce PLC | 3224 |
22 |
| Magenta Medical Ltd. | 199 |
22 |
| Ziehl-abegg SE | 223 |
21 |
| Other owners | 1146 |