- All sections
- F - Mechanical engineeringlightingheatingweaponsblasting
- F16K - Valvestapscocksactuating-floatsdevices for venting or aerating
- F16K 31/04 - Operating meansReleasing devices electricOperating meansReleasing devices magnetic using a motor
Patent holdings for IPC class F16K 31/04
Total number of patents in this class: 2393
10-year publication summary
|
170
|
218
|
237
|
230
|
222
|
174
|
206
|
223
|
209
|
114
|
| 2016 | 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 | 2025 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| Fujikoki Corporation | 378 |
124 |
| Denso Corporation | 24248 |
85 |
| Kohler Mira Limited | 290 |
31 |
| Aisan Kogyo Kabushiki Kaisha | 742 |
30 |
| Zhejiang Sanhua Automotive Components Co., Ltd. | 297 |
26 |
| Pierburg GmbH | 466 |
25 |
| Nidec Sankyo Corporation | 1082 |
24 |
| Zhejiang DunAn Artificial Environment Co., Ltd | 548 |
24 |
| Danfoss A/S | 1357 |
24 |
| Cameron International Corporation | 1332 |
23 |
| Chandler Systems, Inc. | 41 |
22 |
| Illinois Tool Works Inc. | 11453 |
21 |
| Hamilton Sundstrand Corporation | 4860 |
21 |
| AUMA Riester GmbH + Co. KG | 112 |
20 |
| Belimo Holding AG | 271 |
20 |
| Valeo Systemes de Controle Moteur | 610 |
20 |
| Vitesco Technologies GmbH | 2606 |
19 |
| LG Electronics Inc. | 72890 |
17 |
| Continental Automotive GmbH | 5009 |
17 |
| Fisher Controls International LLC | 1489 |
17 |
| Other owners | 1783 |