- 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: 1682
10-year publication summary
|
231
|
214
|
147
|
126
|
107
|
106
|
84
|
110
|
132
|
96
|
| 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 | 2025 | 2026 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| Rtx Corporation | 10128 |
150 |
| General Electric Company | 13910 |
84 |
| Safran Aircraft Engines | 6704 |
61 |
| Nidec Corporation | 2817 |
39 |
| Rolls-Royce Corporation | 1677 |
29 |
| Delta Electronics, Inc. | 2830 |
27 |
| ECP Entwicklungsgesellschaft mbH | 254 |
27 |
| Edwards Japan Limited | 439 |
26 |
| Pratt & Whitney Canada Corp. | 5506 |
25 |
| ebm-papst Mulfingen GmbH & Co. KG | 497 |
25 |
| Rolls-Royce PLC | 3223 |
24 |
| Rolls-Royce North American Technologies, Inc. | 1129 |
23 |
| Magenta Medical Ltd. | 199 |
22 |
| LG Electronics Inc. | 75818 |
20 |
| Hamilton Sundstrand Corporation | 5014 |
18 |
| SANYO Denki Co., Ltd. | 205 |
18 |
| Robert Bosch GmbH | 44176 |
17 |
| Honeywell International Inc. | 12772 |
16 |
| Mitsubishi Electric Corporation | 48048 |
16 |
| Milwaukee Electric Tool Corporation | 4967 |
16 |
| Other owners | 999 |