- 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: 156
10-year publication summary
|
20
|
17
|
11
|
11
|
14
|
11
|
14
|
9
|
3
|
6
|
| 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 | 2025 | 2026 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| Siemens Energy Global GmbH & Co. KG | 3232 |
10 |
| Nuovo Pignone Tecnologie S.r.l. | 1134 |
9 |
| Safran Aircraft Engines | 6509 |
8 |
| Siemens AG | 24250 |
6 |
| Rtx Corporation | 9825 |
6 |
| GREE Electric Appliances, Inc. of Zhuhai | 3274 |
5 |
| IHI Corporation | 3513 |
5 |
| Kawasaki Motors, Ltd. | 1484 |
5 |
| Mitsubishi Heavy Industries Compressor Corporation | 634 |
4 |
| Baker Hughes Oilfield Operations, LLC | 2429 |
4 |
| Halliburton Energy Services, Inc. | 21154 |
3 |
| Daikin Industries, Ltd. | 10380 |
3 |
| Rolls-Royce Corporation | 1683 |
3 |
| Gree Electric Appliances (Wuhan) Co., Ltd. | 318 |
3 |
| General Electric Company | 13809 |
2 |
| LG Electronics Inc. | 74791 |
2 |
| Pratt & Whitney Canada Corp. | 5197 |
2 |
| Robert Bosch GmbH | 43504 |
2 |
| Mitsubishi Electric Corporation | 47511 |
2 |
| Delta Electronics, Inc. | 2768 |
2 |
| Other owners | 70 |