- 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: 1979
10-year publication summary
|
240
|
260
|
281
|
165
|
171
|
102
|
129
|
108
|
110
|
53
|
| 2016 | 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 | 2025 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| Rtx Corporation | 9297 |
223 |
| Safran Aircraft Engines | 6237 |
114 |
| General Electric Company | 13829 |
90 |
| GE Infrastructure Technology, LLC | 6192 |
67 |
| IHI Corporation | 3408 |
50 |
| Pratt & Whitney Canada Corp. | 4602 |
41 |
| Mitsubishi Electric Corporation | 45811 |
36 |
| ebm-papst Mulfingen GmbH & Co. KG | 610 |
30 |
| MTU Aero Engines AG | 671 |
30 |
| Siemens AG | 24561 |
25 |
| Safran Aero Boosters SA | 182 |
25 |
| Delta Electronics, Inc. | 2583 |
24 |
| Snecma | 1065 |
23 |
| SNECMA S.A. | 1145 |
22 |
| Denso Corporation | 24120 |
22 |
| Magenta Medical Ltd. | 168 |
22 |
| Mitsubishi Power, Ltd. | 1757 |
22 |
| Mitsubishi Heavy Industries, Ltd. | 8647 |
21 |
| Rolls-Royce PLC | 3047 |
20 |
| Ziehl-abegg SE | 212 |
19 |
| Other owners | 1053 |