- All sections
- F - Mechanical engineering; lighting; heating; weapons; blasting
- 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: 472
10-year publication summary
|
54
|
28
|
53
|
59
|
50
|
49
|
49
|
30
|
45
|
9
|
| 2015 | 2016 | 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| Grundfos Holding A/S | 506 |
30 |
| S.A. Armstrong Limited, | 79 |
16 |
| State Farm Mutual Automobile Insurance Company | 2560 |
11 |
| Xylem Europe GmbH | 204 |
11 |
| Hayward Industries, Inc. | 669 |
10 |
| KSB SE & Co. KGaA | 628 |
10 |
| Halliburton Energy Services, Inc. | 20165 |
8 |
| Flow Control LLC. | 131 |
8 |
| Fluid Handling LLC | 241 |
8 |
| Husqvarna AB | 2824 |
8 |
| Pentair Water Pool and Spa, Inc. | 457 |
8 |
| Schweitzer Engineering Laboratories, Inc. | 920 |
8 |
| LG Electronics Inc. | 69257 |
7 |
| Xylem IP Management S.A R.L. | 70 |
7 |
| Wayne/Scott Fetzer Company | 63 |
7 |
| Alfred Kärcher GmbH & Co. KG | 398 |
6 |
| PENTAIR Flow Technologies, LLC | 167 |
6 |
| Regal Beloit America, Inc. | 939 |
6 |
| Xylem IP Holdings LLC | 150 |
6 |
| Siemens AG | 24990 |
5 |
| Other owners | 286 |