- All sections
- F - Mechanical engineering; lighting; heating; weapons; blasting
- F04D - Non-positive-displacement pumps
- F04D 29/40 - Casings; Connections for working fluid
Patent holdings for IPC class F04D 29/40
Total number of patents in this class: 924
10-year publication summary
|
113
|
57
|
75
|
83
|
92
|
101
|
115
|
78
|
86
|
23
|
| 2015 | 2016 | 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| LG Electronics Inc. | 69257 |
45 |
| BorgWarner Inc. | 2604 |
29 |
| Dyson Technology Limited | 3124 |
29 |
| GREE Electric Appliances, Inc. of Zhuhai | 3007 |
18 |
| Weir Minerals Australia, Ltd. | 309 |
15 |
| Amotech Co., Ltd. | 460 |
10 |
| General Electric Company | 18133 |
9 |
| Mitsubishi Heavy Industries Compressor Corporation | 613 |
9 |
| Robert Bosch GmbH | 40953 |
8 |
| Delta Electronics, Inc. | 2401 |
8 |
| Dresser-Rand Company | 233 |
8 |
| Rtx Corporation | 8674 |
8 |
| Samsung Electronics Co., Ltd. | 131630 |
7 |
| Mitsubishi Heavy Industries, Ltd. | 8217 |
7 |
| Ford Global Technologies, LLC | 19702 |
7 |
| Mitsubishi Electric Corporation | 43934 |
7 |
| ResMed Motor Technologies Inc | 72 |
7 |
| Edwards Japan Limited | 376 |
7 |
| Safran Aircraft Engines | 5739 |
7 |
| Rolls-Royce PLC | 2944 |
6 |
| Other owners | 673 |