- All sections
- F - Mechanical engineeringlightingheatingweaponsblasting
- F04D - Non-positive-displacement pumps
- F04D 29/26 - Rotors specially adapted for elastic fluids
Patent holdings for IPC class F04D 29/26
Total number of patents in this class: 506
10-year publication summary
|
56
|
42
|
40
|
58
|
36
|
47
|
37
|
37
|
27
|
13
|
| 2016 | 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 | 2025 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| LG Electronics Inc. | 73578 |
21 |
| Robert Bosch GmbH | 42824 |
20 |
| GREE Electric Appliances, Inc. of Zhuhai | 3251 |
15 |
| Mitsubishi Heavy Industries Compressor Corporation | 634 |
14 |
| Dyson Technology Limited | 3673 |
12 |
| BorgWarner Inc. | 2600 |
8 |
| Ziehl-abegg SE | 214 |
8 |
| Praxair Technology, Inc. | 1283 |
7 |
| Siemens Energy Global GmbH & Co. KG | 3020 |
7 |
| Samsung Electronics Co., Ltd. | 147622 |
6 |
| Siemens AG | 24386 |
6 |
| Pratt & Whitney Canada Corp. | 4818 |
6 |
| Mitsubishi Electric Corporation | 46449 |
6 |
| Siemens Energy, Inc. | 1708 |
6 |
| Edwards Limited | 793 |
6 |
| Safran Aircraft Engines | 6306 |
6 |
| Valeo Systemes Thermiques | 2737 |
6 |
| General Electric Company | 13859 |
5 |
| Delta Electronics, Inc. | 2648 |
5 |
| Shimadzu Corporation | 6191 |
5 |
| Other owners | 331 |