- All sections
- F - Mechanical engineeringlightingheatingweaponsblasting
- F04D - Non-positive-displacement pumps
- F04D 19/02 - Multi-stage pumps
Patent holdings for IPC class F04D 19/02
Total number of patents in this class: 424
10-year publication summary
|
47
|
75
|
61
|
38
|
44
|
31
|
28
|
26
|
19
|
16
|
| 2016 | 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 | 2025 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| Rtx Corporation | 9601 |
55 |
| General Electric Company | 13830 |
26 |
| Pratt & Whitney Canada Corp. | 4958 |
15 |
| Safran Aircraft Engines | 6410 |
15 |
| Nuovo Pignone Tecnologie S.r.l. | 1056 |
15 |
| MTU Aero Engines AG | 699 |
11 |
| OneSubsea IP UK Limited | 424 |
10 |
| Rolls-Royce North American Technologies, Inc. | 1177 |
10 |
| Mitsubishi Heavy Industries, Ltd. | 8900 |
9 |
| Rolls-Royce PLC | 3159 |
9 |
| Safran Aero Boosters SA | 184 |
9 |
| Siemens Energy Global GmbH & Co. KG | 3090 |
8 |
| Rolls-Royce Corporation | 1753 |
7 |
| GE Infrastructure Technology, LLC | 6197 |
7 |
| Upwing Energy, Inc. | 51 |
7 |
| Delta Electronics, Inc. | 2682 |
6 |
| Nidec Corporation | 2705 |
6 |
| Dyson Technology Limited | 3760 |
5 |
| Midea Group Co., Ltd. | 4684 |
5 |
| Siemens AG | 24333 |
4 |
| Other owners | 185 |