- All sections
- F - Mechanical engineeringlightingheatingweaponsblasting
- F04D - Non-positive-displacement pumps
- F04D 15/02 - Stopping of pumps, or operating valves, on occurrence of unwanted conditions
Patent holdings for IPC class F04D 15/02
Total number of patents in this class: 526
10-year publication summary
|
53
|
59
|
50
|
49
|
50
|
40
|
50
|
35
|
35
|
8
|
| 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 | 2025 | 2026 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| Grundfos Holding A/S | 595 |
34 |
| S.A. Armstrong Limited, | 87 |
20 |
| State Farm Mutual Automobile Insurance Company | 3330 |
20 |
| KSB SE & Co. KGaA | 715 |
18 |
| Halliburton Energy Services, Inc. | 21194 |
11 |
| Hayward Industries, Inc. | 676 |
11 |
| Fluid Handling LLC | 256 |
10 |
| Xylem Europe GmbH | 220 |
9 |
| Flow Control LLC. | 143 |
8 |
| Husqvarna AB | 2980 |
8 |
| Schweitzer Engineering Laboratories, Inc. | 912 |
8 |
| LG Electronics Inc. | 74968 |
7 |
| PENTAIR Flow Technologies, LLC | 173 |
7 |
| Xylem IP Management S.A R.L. | 69 |
7 |
| ECP Entwicklungsgesellschaft mbH | 241 |
6 |
| Siemens AG | 24200 |
5 |
| ABB Schweiz AG | 7441 |
5 |
| Alfred Kärcher GmbH & Co. KG | 356 |
5 |
| Aspen Pumps Limited | 139 |
5 |
| Belimo Holding AG | 276 |
5 |
| Other owners | 317 |