- 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: 508
10-year publication summary
|
61
|
45
|
42
|
62
|
40
|
48
|
38
|
39
|
28
|
14
|
| 2016 | 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 | 2025 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| LG Electronics Inc. | 73210 |
21 |
| Robert Bosch GmbH | 42677 |
20 |
| GREE Electric Appliances, Inc. of Zhuhai | 3246 |
15 |
| Mitsubishi Heavy Industries Compressor Corporation | 631 |
14 |
| Dyson Technology Limited | 3643 |
12 |
| BorgWarner Inc. | 2600 |
8 |
| Ziehl-abegg SE | 212 |
8 |
| Praxair Technology, Inc. | 1293 |
7 |
| Siemens Energy Global GmbH & Co. KG | 2974 |
7 |
| Samsung Electronics Co., Ltd. | 146534 |
6 |
| Siemens AG | 24461 |
6 |
| Pratt & Whitney Canada Corp. | 4765 |
6 |
| Mitsubishi Electric Corporation | 46160 |
6 |
| Siemens Energy, Inc. | 1689 |
6 |
| Edwards Limited | 786 |
6 |
| Safran Aircraft Engines | 6287 |
6 |
| Valeo Systemes Thermiques | 2732 |
6 |
| General Electric Company | 13808 |
5 |
| Delta Electronics, Inc. | 2616 |
5 |
| Shimadzu Corporation | 6171 |
5 |
| Other owners | 333 |