- All sections
- F - Mechanical engineeringlightingheatingweaponsblasting
- F04D - Non-positive-displacement pumps
- F04D 29/054 - Arrangements for joining or assembling shafts
Patent holdings for IPC class F04D 29/054
Total number of patents in this class: 147
10-year publication summary
|
13
|
20
|
17
|
11
|
11
|
14
|
11
|
13
|
9
|
2
|
| 2016 | 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 | 2025 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| Siemens Energy Global GmbH & Co. KG | 3020 |
10 |
| Nuovo Pignone Tecnologie S.r.l. | 998 |
9 |
| Safran Aircraft Engines | 6306 |
8 |
| Siemens AG | 24386 |
6 |
| Rtx Corporation | 9445 |
6 |
| GREE Electric Appliances, Inc. of Zhuhai | 3251 |
5 |
| Kawasaki Motors, Ltd. | 1328 |
5 |
| IHI Corporation | 3451 |
4 |
| Mitsubishi Heavy Industries Compressor Corporation | 634 |
4 |
| Halliburton Energy Services, Inc. | 20946 |
3 |
| Daikin Industries, Ltd. | 10071 |
3 |
| Rolls-Royce Corporation | 1760 |
3 |
| Thermodyn SAS | 29 |
3 |
| Baker Hughes Oilfield Operations, LLC | 2322 |
3 |
| Gree Electric Appliances (Wuhan) Co., Ltd. | 318 |
3 |
| LG Electronics Inc. | 73578 |
2 |
| Pratt & Whitney Canada Corp. | 4818 |
2 |
| Robert Bosch GmbH | 42824 |
2 |
| Delta Electronics, Inc. | 2648 |
2 |
| Siemens Energy, Inc. | 1708 |
2 |
| Other owners | 62 |