- All sections
- F - Mechanical engineeringlightingheatingweaponsblasting
- F04D - Non-positive-displacement pumps
- F04D 29/20 - Mounting rotors on shafts
Patent holdings for IPC class F04D 29/20
Total number of patents in this class: 172
10-year publication summary
|
10
|
22
|
18
|
16
|
11
|
14
|
13
|
10
|
10
|
3
|
| 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 | 2025 | 2026 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| ResMed Motor Technologies Inc | 76 |
6 |
| Ecotech, Inc. | 20 |
6 |
| Molten Metal Equipment Innovations, LLC | 100 |
6 |
| Halliburton Energy Services, Inc. | 21115 |
5 |
| Robert Bosch GmbH | 43321 |
5 |
| Denso Corporation | 24997 |
4 |
| Aisan Kogyo Kabushiki Kaisha | 758 |
4 |
| General Electric Company | 13777 |
3 |
| ITT Manufacturing Enterprises LLC | 407 |
3 |
| KSB Aktiengesellschaft | 159 |
3 |
| Xylem IP Management S.A R.L. | 70 |
3 |
| Zhejiang Sanhua Automotive Components Co., Ltd. | 314 |
3 |
| Pratt & Whitney Canada Corp. | 5077 |
2 |
| Areva NP | 205 |
2 |
| Dyson Technology Limited | 3820 |
2 |
| Mitsubishi Heavy Industries Compressor Corporation | 633 |
2 |
| OneSubsea IP UK Limited | 429 |
2 |
| Outotec (Finland) Oy | 459 |
2 |
| Safran Aircraft Engines | 6473 |
2 |
| Shanghai Apollo Machinery Co.,Ltd | 10 |
2 |
| Other owners | 105 |