- 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: 507
10-year publication summary
|
28
|
53
|
59
|
50
|
49
|
49
|
38
|
48
|
34
|
22
|
| 2016 | 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 | 2025 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| Grundfos Holding A/S | 556 |
33 |
| State Farm Mutual Automobile Insurance Company | 3114 |
20 |
| S.A. Armstrong Limited, | 88 |
19 |
| KSB SE & Co. KGaA | 700 |
16 |
| Hayward Industries, Inc. | 670 |
11 |
| Halliburton Energy Services, Inc. | 20891 |
9 |
| Fluid Handling LLC | 244 |
9 |
| Xylem Europe GmbH | 214 |
9 |
| Flow Control LLC. | 132 |
8 |
| Husqvarna AB | 2911 |
8 |
| Schweitzer Engineering Laboratories, Inc. | 913 |
8 |
| LG Electronics Inc. | 73021 |
7 |
| PENTAIR Flow Technologies, LLC | 175 |
7 |
| Xylem IP Management S.A R.L. | 70 |
7 |
| Alfred Kärcher GmbH & Co. KG | 374 |
6 |
| ECP Entwicklungsgesellschaft mbH | 230 |
6 |
| Regal Beloit America, Inc. | 867 |
6 |
| Siemens AG | 24484 |
5 |
| ABB Schweiz AG | 6969 |
5 |
| Aspen Pumps Limited | 135 |
5 |
| Other owners | 303 |