- All sections
- F - Mechanical engineeringlightingheatingweaponsblasting
- F04D - Non-positive-displacement pumps
- F04D 29/56 - Fluid-guiding means, e.g. diffusers adjustable
Patent holdings for IPC class F04D 29/56
Total number of patents in this class: 599
10-year publication summary
|
60
|
77
|
55
|
36
|
40
|
26
|
33
|
19
|
19
|
17
|
| 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 | 2025 | 2026 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| Rtx Corporation | 10055 |
98 |
| Safran Aircraft Engines | 6664 |
92 |
| General Electric Company | 13894 |
33 |
| MTU Aero Engines AG | 725 |
26 |
| Pratt & Whitney Canada Corp. | 5464 |
21 |
| Rolls-Royce North American Technologies, Inc. | 1127 |
17 |
| Mitsubishi Heavy Industries, Ltd. | 9099 |
15 |
| GE Infrastructure Technology, LLC | 6169 |
13 |
| Snecma | 1058 |
13 |
| Rolls-Royce PLC | 3222 |
12 |
| Rolls-Royce Corporation | 1676 |
12 |
| Safran Aero Boosters SA | 185 |
10 |
| Safran Helicopter Engines | 837 |
10 |
| SNECMA S.A. | 1147 |
9 |
| Siemens AG | 24050 |
8 |
| Mitsubishi Power, Ltd. | 1830 |
8 |
| Dyson Technology Limited | 3970 |
7 |
| MTU Aero Engines GmbH | 422 |
7 |
| Rolls-Royce Deutschland Ltd & Co KG | 856 |
6 |
| SAFRAN S.A. | 783 |
5 |
| Other owners | 177 |