- All sections
- F - Mechanical engineeringlightingheatingweaponsblasting
- F04D - Non-positive-displacement pumps
- F04D 17/12 - Multi-stage pumps
Patent holdings for IPC class F04D 17/12
Total number of patents in this class: 875
10-year publication summary
|
98
|
103
|
89
|
74
|
67
|
45
|
75
|
71
|
55
|
28
|
| 2016 | 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 | 2025 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| Mitsubishi Heavy Industries Compressor Corporation | 631 |
125 |
| Nuovo Pignone Tecnologie S.r.l. | 981 |
87 |
| Siemens AG | 24461 |
48 |
| Siemens Energy Global GmbH & Co. KG | 2974 |
22 |
| Mitsubishi Heavy Industries, Ltd. | 8735 |
20 |
| Carrier Corporation | 4297 |
20 |
| Nuovo Pignone SRL | 202 |
19 |
| Trane International Inc. | 1184 |
18 |
| Daikin Industries, Ltd. | 10016 |
17 |
| Hitachi Industrial Products, Ltd. | 188 |
17 |
| Robert Bosch GmbH | 42677 |
16 |
| Praxair Technology, Inc. | 1293 |
14 |
| Danfoss A/S | 1353 |
13 |
| LG Electronics Inc. | 73210 |
12 |
| IHI Corporation | 3440 |
11 |
| Siemens Energy, Inc. | 1689 |
10 |
| Dresser-Rand Company | 212 |
10 |
| Air Products and Chemicals, Inc. | 1424 |
9 |
| Mitsubishi Heavy Industries Thermal Systems, Ltd. | 889 |
9 |
| GREE Electric Appliances, Inc. of Zhuhai | 3246 |
8 |
| Other owners | 370 |