- 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: 588
10-year publication summary
|
78
|
60
|
77
|
55
|
36
|
40
|
26
|
32
|
19
|
9
|
| 2016 | 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 | 2025 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| Rtx Corporation | 9313 |
95 |
| Safran Aircraft Engines | 6250 |
90 |
| General Electric Company | 13830 |
33 |
| MTU Aero Engines AG | 671 |
26 |
| Pratt & Whitney Canada Corp. | 4629 |
21 |
| Rolls-Royce North American Technologies, Inc. | 1162 |
19 |
| Mitsubishi Heavy Industries, Ltd. | 8657 |
15 |
| Rolls-Royce Corporation | 1727 |
15 |
| Rolls-Royce PLC | 3072 |
14 |
| GE Infrastructure Technology, LLC | 6196 |
13 |
| Snecma | 1065 |
13 |
| Safran Aero Boosters SA | 182 |
10 |
| Safran Helicopter Engines | 750 |
10 |
| SNECMA S.A. | 1145 |
9 |
| Siemens AG | 24547 |
8 |
| Mitsubishi Power, Ltd. | 1758 |
8 |
| JPMorgan Chase Bank, National Association | 8540 |
7 |
| Dyson Technology Limited | 3608 |
7 |
| MTU Aero Engines GmbH | 509 |
7 |
| Honeywell International Inc. | 13562 |
6 |
| Other owners | 162 |