- All sections
- F - Mechanical engineeringlightingheatingweaponsblasting
- F04D - Non-positive-displacement pumps
- F04D 19/00 - Axial-flow pumps specially adapted for elastic fluids
Patent holdings for IPC class F04D 19/00
Total number of patents in this class: 1464
10-year publication summary
|
202
|
166
|
173
|
146
|
150
|
124
|
139
|
149
|
154
|
94
|
| 2016 | 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 | 2025 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| Nidec Corporation | 2662 |
58 |
| Delta Electronics, Inc. | 2605 |
52 |
| General Electric Company | 13780 |
45 |
| ebm-papst Mulfingen GmbH & Co. KG | 615 |
44 |
| Rtx Corporation | 9376 |
42 |
| Asia Vital Components Co., Ltd. | 407 |
33 |
| Hamilton Sundstrand Corporation | 4868 |
28 |
| SANYO Denki Co., Ltd. | 207 |
25 |
| Safran Aircraft Engines | 6276 |
22 |
| Mitsubishi Electric Corporation | 46093 |
19 |
| Delta T, LLC | 287 |
17 |
| LG Electronics Inc. | 73021 |
15 |
| Hunter Fan Company | 764 |
15 |
| Ziehl-abegg SE | 212 |
14 |
| Lighting Defense Group, LLC | 41 |
13 |
| Prime Datum, Inc. | 23 |
12 |
| Cooler Master Co., Ltd. | 227 |
11 |
| EBM-Papst St. Georgen GmbH & Co. KG | 240 |
11 |
| Minebea Mitsumi Inc. | 1737 |
11 |
| Robert Bosch GmbH | 42689 |
10 |
| Other owners | 967 |