- 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: 174
10-year publication summary
|
10
|
22
|
18
|
16
|
11
|
14
|
13
|
10
|
10
|
4
|
| 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. | 12 |
6 |
| Molten Metal Equipment Innovations, LLC | 100 |
6 |
| Halliburton Energy Services, Inc. | 21169 |
5 |
| Robert Bosch GmbH | 43554 |
5 |
| Denso Corporation | 25165 |
4 |
| Aisan Kogyo Kabushiki Kaisha | 756 |
4 |
| General Electric Company | 13819 |
3 |
| ITT Manufacturing Enterprises LLC | 414 |
3 |
| KSB Aktiengesellschaft | 157 |
3 |
| Xylem IP Management S.A R.L. | 69 |
3 |
| Zhejiang Sanhua Automotive Components Co., Ltd. | 320 |
3 |
| Pratt & Whitney Canada Corp. | 5210 |
2 |
| Areva NP | 202 |
2 |
| Dyson Technology Limited | 3885 |
2 |
| Mitsubishi Heavy Industries Compressor Corporation | 634 |
2 |
| OneSubsea IP UK Limited | 430 |
2 |
| Outotec (Finland) Oy | 458 |
2 |
| Safran Aircraft Engines | 6532 |
2 |
| Shanghai Apollo Machinery Co.,Ltd | 13 |
2 |
| Other owners | 107 |