- 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: 593
10-year publication summary
|
58
|
75
|
52
|
35
|
39
|
25
|
30
|
18
|
18
|
6
|
| 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 | 2025 | 2026 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| Rtx Corporation | 9761 |
96 |
| Safran Aircraft Engines | 6474 |
90 |
| General Electric Company | 13776 |
33 |
| MTU Aero Engines AG | 709 |
26 |
| Pratt & Whitney Canada Corp. | 5059 |
21 |
| Rolls-Royce North American Technologies, Inc. | 1143 |
17 |
| Mitsubishi Heavy Industries, Ltd. | 8961 |
15 |
| GE Infrastructure Technology, LLC | 6202 |
13 |
| Snecma | 1061 |
13 |
| Rolls-Royce PLC | 3172 |
12 |
| Rolls-Royce Corporation | 1691 |
12 |
| Safran Aero Boosters SA | 184 |
10 |
| Safran Helicopter Engines | 801 |
10 |
| SNECMA S.A. | 1148 |
9 |
| Siemens AG | 24278 |
8 |
| Mitsubishi Power, Ltd. | 1814 |
8 |
| Dyson Technology Limited | 3813 |
7 |
| MTU Aero Engines GmbH | 458 |
7 |
| Honeywell International Inc. | 13561 |
6 |
| JPMorgan Chase Bank, National Association | 8619 |
6 |
| Other owners | 174 |