- All sections
- F - Mechanical engineering; lighting; heating; weapons; blasting
- F04F - Pumping of fluid by direct contact of another fluid or by using inertia of fluid to be pumped; siphons
- F04F 3/00 - Pumps using negative pressure acting directly on the liquid to be pumped
Patent holdings for IPC class F04F 3/00
Total number of patents in this class: 40
10-year publication summary
|
3
|
0
|
4
|
2
|
6
|
1
|
9
|
2
|
5
|
0
|
| 2016 | 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 | 2025 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| Searen, LLC | 6 |
5 |
| Murata Manufacturing Co., Ltd. | 23702 |
2 |
| Chuan Jiing Enterprises Co., Ltd. | 13 |
2 |
| Edwards Limited | 800 |
2 |
| Samsung Electronics Co., Ltd. | 139001 |
1 |
| Contemporary Amperex Technology Co., Limited | 5392 |
1 |
| CP Packaging, Inc. | 22 |
1 |
| Data Flow Systems, Inc. | 18 |
1 |
| Dresser-Rand Company | 217 |
1 |
| Hawthorne Hydroponics LLC | 9 |
1 |
| Hgci, Inc. | 847 |
1 |
| Leistritz Pumpen GmbH | 24 |
1 |
| Maschinenfabrik Leonhardt GmbH | 5 |
1 |
| ortec Expansion | 13 |
1 |
| S.J. Electro Systems, LLC | 80 |
1 |
| United Arab Emirates University | 287 |
1 |
| University of Tasmania | 67 |
1 |
| University of Washington | 2252 |
1 |
| Waterbox Oy | 11 |
1 |
| Watershed Geosynthetics LLC | 89 |
1 |
| Other owners | 13 |