- All sections
- F - Mechanical engineeringlightingheatingweaponsblasting
- F04D - Non-positive-displacement pumps
- F04D 29/66 - Combating cavitation, whirls, noise, vibration, or the likeBalancing
Patent holdings for IPC class F04D 29/66
Total number of patents in this class: 3389
10-year publication summary
|
275
|
336
|
339
|
251
|
245
|
220
|
229
|
199
|
234
|
190
|
| 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 | 2025 | 2026 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| Rtx Corporation | 10264 |
83 |
| Mitsubishi Electric Corporation | 48546 |
82 |
| Denso Corporation | 25936 |
77 |
| Daikin Industries, Ltd. | 10546 |
67 |
| General Electric Company | 14036 |
65 |
| LG Electronics Inc. | 76283 |
60 |
| Mitsubishi Heavy Industries, Ltd. | 9279 |
59 |
| Safran Aircraft Engines | 6824 |
55 |
| IHI Corporation | 3555 |
50 |
| Pratt & Whitney Canada Corp. | 5638 |
49 |
| Midea Group Co., Ltd. | 5109 |
47 |
| Valeo Systemes Thermiques | 2821 |
44 |
| Delta Electronics, Inc. | 2880 |
41 |
| ebm-papst Mulfingen GmbH & Co. KG | 493 |
41 |
| GREE Electric Appliances, Inc. of Zhuhai | 3328 |
38 |
| Nidec Corporation | 2832 |
35 |
| Asia Vital Components Co., Ltd. | 434 |
33 |
| BorgWarner Inc. | 2587 |
29 |
| Dyson Technology Limited | 4061 |
26 |
| Mitsubishi Heavy Industries Compressor Corporation | 650 |
26 |
| Other owners | 2382 |