- All sections
- F - Mechanical engineeringlightingheatingweaponsblasting
- F04D - Non-positive-displacement pumps
- F04D 29/057 - Bearings hydrostaticBearings hydrodynamic
Patent holdings for IPC class F04D 29/057
Total number of patents in this class: 304
10-year publication summary
|
14
|
19
|
27
|
28
|
30
|
24
|
27
|
22
|
26
|
6
|
| 2016 | 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 | 2025 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| Robert Bosch GmbH | 42505 |
23 |
| Hamilton Sundstrand Corporation | 4834 |
17 |
| IHI Corporation | 3413 |
12 |
| Mitsubishi Heavy Industries Compressor Corporation | 626 |
9 |
| Trane International Inc. | 1175 |
9 |
| Haier Smart Home Co., Ltd. | 5428 |
8 |
| LG Electronics Inc. | 72559 |
6 |
| GREE Electric Appliances, Inc. of Zhuhai | 3221 |
6 |
| Nidec Corporation | 2644 |
6 |
| Technologies' Xanadu of resonatory-Solar-systemed Co., Ltd | 77 |
6 |
| Copeland LP | 687 |
6 |
| ResMed Motor Technologies Inc | 79 |
5 |
| Venus Systems Limited | 5 |
5 |
| Kabushiki Kaisha Toyota Jidoshokki | 1748 |
5 |
| Mitsubishi Heavy Industries, Ltd. | 8657 |
4 |
| Panasonic Intellectual Property Management Co., Ltd. | 31022 |
4 |
| Delta Electronics, Inc. | 2589 |
4 |
| NTN Corporation | 4977 |
4 |
| BorgWarner Inc. | 2608 |
4 |
| Edwards Limited | 790 |
4 |
| Other owners | 157 |