- 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: 1525
10-year publication summary
|
200
|
165
|
170
|
145
|
149
|
121
|
139
|
146
|
159
|
158
|
| 2016 | 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 | 2025 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| Nidec Corporation | 2705 |
58 |
| Delta Electronics, Inc. | 2682 |
57 |
| General Electric Company | 13830 |
46 |
| ebm-papst Mulfingen GmbH & Co. KG | 610 |
44 |
| Rtx Corporation | 9601 |
44 |
| Asia Vital Components Co., Ltd. | 418 |
34 |
| Hamilton Sundstrand Corporation | 4956 |
29 |
| SANYO Denki Co., Ltd. | 204 |
25 |
| Safran Aircraft Engines | 6410 |
22 |
| Mitsubishi Electric Corporation | 46973 |
19 |
| Delta T, LLC | 284 |
17 |
| Hunter Fan Company | 799 |
17 |
| LG Electronics Inc. | 73825 |
15 |
| Ziehl-abegg SE | 216 |
15 |
| Milwaukee Electric Tool Corporation | 4595 |
13 |
| Prime Datum, Inc. | 24 |
13 |
| Lighting Defense Group, LLC | 45 |
13 |
| Minebea Mitsumi Inc. | 1804 |
12 |
| Cooler Master Co., Ltd. | 238 |
11 |
| EBM-Papst St. Georgen GmbH & Co. KG | 233 |
11 |
| Other owners | 1010 |