- All sections
- F - Mechanical engineeringlightingheatingweaponsblasting
- F04D - Non-positive-displacement pumps
- F04D 27/00 - Control, e.g. regulation, of pumps, pumping installations or pumping systems specially adapted for elastic fluids
Patent holdings for IPC class F04D 27/00
Total number of patents in this class: 2831
10-year publication summary
|
304
|
288
|
244
|
225
|
232
|
228
|
197
|
191
|
234
|
171
|
| 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 | 2025 | 2026 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| Rtx Corporation | 10240 |
51 |
| General Electric Company | 14021 |
47 |
| Panasonic Intellectual Property Management Co., Ltd. | 34685 |
46 |
| LG Electronics Inc. | 76328 |
40 |
| Edwards Japan Limited | 443 |
37 |
| Mitsubishi Heavy Industries Compressor Corporation | 650 |
34 |
| Daikin Industries, Ltd. | 10546 |
33 |
| Shimadzu Corporation | 6385 |
31 |
| Delta T, LLC | 276 |
31 |
| Midea Group Co., Ltd. | 5102 |
31 |
| Edwards Limited | 775 |
29 |
| ebm-papst Mulfingen GmbH & Co. KG | 493 |
28 |
| Nuovo Pignone Tecnologie S.r.l. | 1127 |
27 |
| Safran Aircraft Engines | 6811 |
26 |
| GD Midea Environment Appliances MFG Co., Ltd. | 240 |
26 |
| Mitsubishi Heavy Industries, Ltd. | 9271 |
25 |
| Carrier Corporation | 3958 |
25 |
| Regal Beloit America, Inc. | 849 |
25 |
| Dyson Technology Limited | 4053 |
23 |
| Ziehl-abegg SE | 223 |
23 |
| Other owners | 2193 |