- 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: 942
10-year publication summary
|
103
|
89
|
74
|
68
|
46
|
73
|
76
|
59
|
56
|
44
|
| 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 | 2025 | 2026 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| Mitsubishi Heavy Industries Compressor Corporation | 647 |
129 |
| Nuovo Pignone Tecnologie S.r.l. | 1219 |
95 |
| Siemens AG | 23996 |
43 |
| Siemens Energy Global GmbH & Co. KG | 3414 |
30 |
| Carrier Corporation | 3949 |
21 |
| Nuovo Pignone SRL | 217 |
21 |
| Mitsubishi Heavy Industries, Ltd. | 9161 |
20 |
| Trane International Inc. | 1230 |
20 |
| Hitachi Industrial Products, Ltd. | 211 |
20 |
| Danfoss A/S | 1444 |
18 |
| LG Electronics Inc. | 75807 |
17 |
| Daikin Industries, Ltd. | 10513 |
17 |
| Robert Bosch GmbH | 44238 |
16 |
| Siemens Energy, Inc. | 1685 |
13 |
| Praxair Technology, Inc. | 1215 |
13 |
| IHI Corporation | 3529 |
12 |
| Dresser-Rand Company | 205 |
10 |
| Mitsubishi Heavy Industries Engine & Turbocharger, Ltd. | 843 |
10 |
| Air Products and Chemicals, Inc. | 1470 |
9 |
| Thermodyn SAS | 32 |
9 |
| Other owners | 399 |