- 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: 436
10-year publication summary
|
75
|
61
|
38
|
46
|
31
|
28
|
29
|
19
|
23
|
15
|
| 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 | 2025 | 2026 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| Rtx Corporation | 10141 |
55 |
| General Electric Company | 13938 |
26 |
| Pratt & Whitney Canada Corp. | 5523 |
16 |
| Safran Aircraft Engines | 6741 |
15 |
| Nuovo Pignone Tecnologie S.r.l. | 1224 |
15 |
| Siemens Energy Global GmbH & Co. KG | 3447 |
12 |
| MTU Aero Engines AG | 732 |
11 |
| Mitsubishi Heavy Industries, Ltd. | 9172 |
10 |
| Rolls-Royce PLC | 3222 |
10 |
| OneSubsea IP UK Limited | 440 |
10 |
| Rolls-Royce North American Technologies, Inc. | 1131 |
10 |
| Safran Aero Boosters SA | 185 |
9 |
| Nidec Corporation | 2828 |
8 |
| Rolls-Royce Corporation | 1680 |
7 |
| GE Infrastructure Technology, LLC | 6154 |
7 |
| Upwing Energy, Inc. | 61 |
7 |
| Delta Electronics, Inc. | 2850 |
6 |
| Dyson Technology Limited | 4023 |
5 |
| Midea Group Co., Ltd. | 5060 |
5 |
| Mitsubishi Power, Ltd. | 1834 |
5 |
| Other owners | 187 |