- All sections
- F - Mechanical engineeringlightingheatingweaponsblasting
- F04D - Non-positive-displacement pumps
- F04D 29/32 - Rotors specially adapted for elastic fluids for axial-flow pumps
Patent holdings for IPC class F04D 29/32
Total number of patents in this class: 2672
10-year publication summary
|
457
|
350
|
224
|
224
|
153
|
156
|
138
|
132
|
135
|
86
|
| 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 | 2025 | 2026 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| Rtx Corporation | 10127 |
451 |
| Safran Aircraft Engines | 6727 |
269 |
| General Electric Company | 13915 |
197 |
| GE Infrastructure Technology, LLC | 6159 |
76 |
| Pratt & Whitney Canada Corp. | 5517 |
60 |
| Rolls-Royce PLC | 3224 |
50 |
| Snecma | 1058 |
46 |
| Delta Electronics, Inc. | 2843 |
43 |
| SNECMA S.A. | 1145 |
40 |
| Mitsubishi Electric Corporation | 48172 |
34 |
| MTU Aero Engines AG | 731 |
33 |
| Hunter Fan Company | 904 |
32 |
| Hamilton Sundstrand Corporation | 5014 |
31 |
| LG Electronics Inc. | 75855 |
30 |
| Rolls-Royce Corporation | 1680 |
29 |
| Nidec Corporation | 2827 |
28 |
| Siemens Energy Global GmbH & Co. KG | 3432 |
26 |
| Valeo Systemes Thermiques | 2821 |
24 |
| IHI Corporation | 3527 |
23 |
| ebm-papst Mulfingen GmbH & Co. KG | 497 |
22 |
| Other owners | 1128 |