- All sections
- F - Mechanical engineeringlightingheatingweaponsblasting
- F04D - Non-positive-displacement pumps
- F04D 29/52 - CasingsConnections for working fluid for axial pumps
Patent holdings for IPC class F04D 29/52
Total number of patents in this class: 1628
10-year publication summary
|
229
|
213
|
143
|
123
|
105
|
103
|
83
|
110
|
126
|
40
|
| 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 | 2025 | 2026 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| Rtx Corporation | 9825 |
147 |
| General Electric Company | 13809 |
84 |
| Safran Aircraft Engines | 6509 |
60 |
| Nidec Corporation | 2751 |
37 |
| Rolls-Royce Corporation | 1683 |
29 |
| Delta Electronics, Inc. | 2768 |
28 |
| ECP Entwicklungsgesellschaft mbH | 240 |
26 |
| Edwards Japan Limited | 436 |
26 |
| ebm-papst Mulfingen GmbH & Co. KG | 513 |
25 |
| Pratt & Whitney Canada Corp. | 5197 |
24 |
| Rolls-Royce PLC | 3174 |
24 |
| Magenta Medical Ltd. | 179 |
22 |
| Rolls-Royce North American Technologies, Inc. | 1138 |
22 |
| LG Electronics Inc. | 74791 |
19 |
| Hamilton Sundstrand Corporation | 5013 |
18 |
| Robert Bosch GmbH | 43504 |
17 |
| SANYO Denki Co., Ltd. | 201 |
17 |
| Honeywell International Inc. | 13561 |
16 |
| Mitsubishi Electric Corporation | 47511 |
16 |
| Safran Aero Boosters SA | 185 |
15 |
| Other owners | 956 |