- 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: 534
10-year publication summary
|
45
|
42
|
62
|
40
|
48
|
38
|
39
|
30
|
24
|
23
|
| 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 | 2025 | 2026 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| LG Electronics Inc. | 75855 |
20 |
| Robert Bosch GmbH | 44254 |
20 |
| GREE Electric Appliances, Inc. of Zhuhai | 3317 |
15 |
| Mitsubishi Heavy Industries Compressor Corporation | 650 |
15 |
| Dyson Technology Limited | 4016 |
14 |
| Ziehl-abegg SE | 223 |
10 |
| Siemens Energy Global GmbH & Co. KG | 3432 |
9 |
| BorgWarner Inc. | 2582 |
8 |
| Praxair Technology, Inc. | 1215 |
7 |
| Samsung Electronics Co., Ltd. | 158442 |
6 |
| Siemens AG | 23996 |
6 |
| Pratt & Whitney Canada Corp. | 5517 |
6 |
| Mitsubishi Electric Corporation | 48172 |
6 |
| Siemens Energy, Inc. | 1686 |
6 |
| Shimadzu Corporation | 6364 |
6 |
| Safran Aircraft Engines | 6727 |
6 |
| Valeo Systemes Thermiques | 2821 |
6 |
| General Electric Company | 13915 |
5 |
| Carrier Corporation | 3947 |
5 |
| JPMorgan Chase Bank, National Association | 8960 |
5 |
| Other owners | 353 |