- 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: 1660
10-year publication summary
|
166
|
173
|
146
|
150
|
124
|
141
|
150
|
159
|
174
|
127
|
| 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 | 2025 | 2026 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| Nidec Corporation | 2817 |
63 |
| General Electric Company | 13899 |
58 |
| Delta Electronics, Inc. | 2830 |
56 |
| Rtx Corporation | 10102 |
45 |
| ebm-papst Mulfingen GmbH & Co. KG | 498 |
43 |
| Asia Vital Components Co., Ltd. | 432 |
35 |
| Hamilton Sundstrand Corporation | 5015 |
30 |
| SANYO Denki Co., Ltd. | 205 |
27 |
| Safran Aircraft Engines | 6694 |
23 |
| Mitsubishi Electric Corporation | 48018 |
19 |
| Delta T, LLC | 280 |
18 |
| Hunter Fan Company | 895 |
18 |
| Milwaukee Electric Tool Corporation | 4958 |
17 |
| Ziehl-abegg SE | 222 |
17 |
| LG Electronics Inc. | 75694 |
15 |
| Cooler Master Co., Ltd. | 265 |
15 |
| Prime Datum, Inc. | 24 |
13 |
| Minebea Mitsumi Inc. | 1943 |
13 |
| Lighting Defense Group, LLC | 44 |
13 |
| Daikin Industries, Ltd. | 10499 |
11 |
| Other owners | 1111 |