- 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: 1640
10-year publication summary
|
232
|
214
|
147
|
126
|
107
|
104
|
84
|
111
|
131
|
54
|
| 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 | 2025 | 2026 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| Rtx Corporation | 9893 |
148 |
| General Electric Company | 13808 |
84 |
| Safran Aircraft Engines | 6554 |
60 |
| Nidec Corporation | 2771 |
37 |
| Rolls-Royce Corporation | 1679 |
29 |
| Delta Electronics, Inc. | 2787 |
28 |
| ECP Entwicklungsgesellschaft mbH | 245 |
26 |
| Edwards Japan Limited | 439 |
26 |
| ebm-papst Mulfingen GmbH & Co. KG | 501 |
25 |
| Pratt & Whitney Canada Corp. | 5232 |
24 |
| Rolls-Royce PLC | 3182 |
24 |
| Magenta Medical Ltd. | 178 |
22 |
| Rolls-Royce North American Technologies, Inc. | 1130 |
22 |
| LG Electronics Inc. | 75112 |
19 |
| Hamilton Sundstrand Corporation | 5019 |
18 |
| Robert Bosch GmbH | 43646 |
17 |
| SANYO Denki Co., Ltd. | 201 |
17 |
| Honeywell International Inc. | 12788 |
16 |
| Mitsubishi Electric Corporation | 47655 |
16 |
| Safran Aero Boosters SA | 185 |
15 |
| Other owners | 967 |