- All sections
- F - Mechanical engineering; lighting; heating; weapons; blasting
- 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: 806
10-year publication summary
|
91
|
98
|
103
|
89
|
74
|
68
|
46
|
74
|
65
|
14
|
| 2015 | 2016 | 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| Mitsubishi Heavy Industries Compressor Corporation | 613 |
124 |
| Nuovo Pignone Tecnologie S.r.l. | 789 |
72 |
| Siemens AG | 24990 |
48 |
| Carrier Corporation | 4759 |
20 |
| Siemens Energy Global GmbH & Co. KG | 2775 |
20 |
| Mitsubishi Heavy Industries, Ltd. | 8217 |
19 |
| Nuovo Pignone SRL | 204 |
19 |
| Daikin Industries, Ltd. | 9495 |
17 |
| Trane International Inc. | 1123 |
16 |
| Robert Bosch GmbH | 40953 |
15 |
| Praxair Technology, Inc. | 1367 |
14 |
| Hitachi Industrial Products, Ltd. | 173 |
13 |
| Danfoss A/S | 1259 |
12 |
| LG Electronics Inc. | 69257 |
11 |
| Siemens Energy, Inc. | 1770 |
10 |
| Dresser-Rand Company | 233 |
10 |
| Air Products and Chemicals, Inc. | 1448 |
9 |
| GREE Electric Appliances, Inc. of Zhuhai | 3007 |
8 |
| IHI Corporation | 3268 |
8 |
| Solar Turbines Incorporated | 452 |
8 |
| Other owners | 333 |