- All sections
- F - Mechanical engineeringlightingheatingweaponsblasting
- F04D - Non-positive-displacement pumps
- F04D 29/40 - CasingsConnections for working fluid
Patent holdings for IPC class F04D 29/40
Total number of patents in this class: 1016
10-year publication summary
|
49
|
66
|
79
|
83
|
100
|
115
|
79
|
84
|
74
|
41
|
| 2016 | 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 | 2025 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| LG Electronics Inc. | 73578 |
55 |
| Dyson Technology Limited | 3673 |
31 |
| BorgWarner Inc. | 2600 |
29 |
| GREE Electric Appliances, Inc. of Zhuhai | 3251 |
18 |
| Weir Minerals Australia, Ltd. | 307 |
15 |
| General Electric Company | 13859 |
10 |
| Amotech Co., Ltd. | 522 |
10 |
| Mitsubishi Heavy Industries Compressor Corporation | 634 |
9 |
| Samsung Electronics Co., Ltd. | 147622 |
8 |
| Robert Bosch GmbH | 42824 |
8 |
| ResMed Motor Technologies Inc | 78 |
8 |
| Edwards Japan Limited | 426 |
8 |
| Rtx Corporation | 9445 |
8 |
| Schlumberger Canada Limited | 7366 |
7 |
| Ford Global Technologies, LLC | 20701 |
7 |
| Delta Electronics, Inc. | 2648 |
7 |
| Rolls-Royce PLC | 3133 |
7 |
| Dresser-Rand Company | 211 |
7 |
| Safran Aircraft Engines | 6306 |
7 |
| Mitsubishi Electric Corporation | 46449 |
6 |
| Other owners | 751 |