- 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: 420
10-year publication summary
|
48
|
75
|
61
|
38
|
46
|
31
|
28
|
28
|
19
|
11
|
| 2016 | 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 | 2025 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| Rtx Corporation | 9319 |
55 |
| General Electric Company | 13838 |
25 |
| Pratt & Whitney Canada Corp. | 4663 |
15 |
| Safran Aircraft Engines | 6265 |
15 |
| Nuovo Pignone Tecnologie S.r.l. | 954 |
15 |
| MTU Aero Engines AG | 672 |
10 |
| OneSubsea IP UK Limited | 419 |
10 |
| Rolls-Royce North American Technologies, Inc. | 1160 |
10 |
| Mitsubishi Heavy Industries, Ltd. | 8664 |
9 |
| Rolls-Royce PLC | 3075 |
9 |
| Safran Aero Boosters SA | 182 |
9 |
| Siemens Energy Global GmbH & Co. KG | 2934 |
8 |
| Rolls-Royce Corporation | 1727 |
7 |
| GE Infrastructure Technology, LLC | 6201 |
7 |
| Upwing Energy, Inc. | 50 |
7 |
| Delta Electronics, Inc. | 2593 |
6 |
| Nidec Corporation | 2648 |
6 |
| Midea Group Co., Ltd. | 4500 |
5 |
| The Penn State Research Foundation | 1513 |
5 |
| Tc1 LLC | 628 |
5 |
| Other owners | 182 |