- All sections
- F - Mechanical engineering; lighting; heating; weapons; blasting
- F04D - Non-positive-displacement pumps
- F04D 25/16 - Combinations of two or more pumps
Patent holdings for IPC class F04D 25/16
Total number of patents in this class: 708
10-year publication summary
|
46
|
84
|
79
|
88
|
78
|
81
|
61
|
90
|
53
|
21
|
| 2015 | 2016 | 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| Nuovo Pignone Tecnologie S.r.l. | 789 |
23 |
| Mitsubishi Heavy Industries Compressor Corporation | 613 |
19 |
| LG Electronics Inc. | 69257 |
18 |
| Siemens AG | 24990 |
16 |
| Midea Group Co., Ltd. | 4025 |
15 |
| Praxair Technology, Inc. | 1367 |
12 |
| Shenzhen LANHE Technologies Co., Ltd. | 142 |
10 |
| Nortek Air Solutions, LLC | 70 |
9 |
| Shenzhen Jisu Technology Co., Ltd. | 49 |
9 |
| Watt Fuel Cell Corp. | 122 |
9 |
| Mitsubishi Electric Corporation | 43934 |
8 |
| Dell Products L.P. | 11144 |
8 |
| Daikin Industries, Ltd. | 9495 |
8 |
| Nidec Corporation | 2579 |
8 |
| Denso Corporation | 23338 |
7 |
| ebm-papst Mulfingen GmbH & Co. KG | 608 |
7 |
| Kaeser KOMPRESSOREN SE | 166 |
7 |
| Ingersoll-Rand Industrial U.S., Inc. | 498 |
7 |
| Guangdong Midea White Home Appliance Technology Innovation Center Co. Ltd. | 290 |
7 |
| Siemens Energy Global GmbH & Co. KG | 2775 |
7 |
| Other owners | 494 |