- 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: 2464
10-year publication summary
|
162
|
213
|
231
|
224
|
213
|
165
|
203
|
221
|
210
|
184
|
| 2016 | 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 | 2025 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| Fujikoki Corporation | 391 |
132 |
| Denso Corporation | 24783 |
88 |
| Kohler Mira Limited | 295 |
31 |
| Aisan Kogyo Kabushiki Kaisha | 747 |
30 |
| Zhejiang Sanhua Automotive Components Co., Ltd. | 309 |
28 |
| Pierburg GmbH | 469 |
25 |
| Zhejiang DunAn Artificial Environment Co., Ltd | 594 |
25 |
| Nidec Sankyo Corporation | 1075 |
24 |
| Cameron International Corporation | 1353 |
23 |
| Danfoss A/S | 1362 |
23 |
| Illinois Tool Works Inc. | 11554 |
22 |
| Chandler Systems, Inc. | 41 |
22 |
| Hamilton Sundstrand Corporation | 4954 |
21 |
| Belimo Holding AG | 272 |
21 |
| AUMA Riester GmbH + Co. KG | 114 |
20 |
| Valeo Systemes de Controle Moteur | 600 |
19 |
| Vitesco Technologies GmbH | 2415 |
19 |
| LG Electronics Inc. | 73772 |
17 |
| Continental Automotive GmbH | 4730 |
17 |
| Fisher Controls International LLC | 1504 |
17 |
| Other owners | 1840 |