- 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: 2485
10-year publication summary
|
213
|
231
|
224
|
213
|
165
|
203
|
220
|
212
|
196
|
12
|
| 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 | 2025 | 2026 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| Fujikoki Corporation | 395 |
135 |
| Denso Corporation | 24958 |
89 |
| Kohler Mira Limited | 300 |
31 |
| Aisan Kogyo Kabushiki Kaisha | 758 |
30 |
| Zhejiang Sanhua Automotive Components Co., Ltd. | 311 |
29 |
| Pierburg GmbH | 469 |
26 |
| Zhejiang DunAn Artificial Environment Co., Ltd | 613 |
26 |
| Nidec Sankyo Corporation | 1075 |
24 |
| Danfoss A/S | 1377 |
24 |
| Cameron International Corporation | 1357 |
23 |
| Illinois Tool Works Inc. | 11645 |
22 |
| Chandler Systems, Inc. | 41 |
22 |
| Hamilton Sundstrand Corporation | 4991 |
21 |
| AUMA Riester GmbH + Co. KG | 126 |
21 |
| Belimo Holding AG | 273 |
21 |
| Valeo Systemes de Controle Moteur | 599 |
19 |
| Vitesco Technologies GmbH | 2413 |
19 |
| LG Electronics Inc. | 74175 |
18 |
| Hanon Systems | 2033 |
18 |
| ECO Holding 1 GmbH | 128 |
18 |
| Other owners | 1849 |