- All sections
- F - Mechanical engineeringlightingheatingweaponsblasting
- F16K - Valvestapscocksactuating-floatsdevices for venting or aerating
- F16K 31/06 - Operating meansReleasing devices electricOperating meansReleasing devices magnetic using a magnet
Patent holdings for IPC class F16K 31/06
Total number of patents in this class: 4500
10-year publication summary
|
445
|
438
|
422
|
404
|
368
|
313
|
286
|
241
|
232
|
87
|
| 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 | 2025 | 2026 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| Robert Bosch GmbH | 43700 |
344 |
| Eagle Industry Co., Ltd. | 1170 |
152 |
| Zhejiang DunAn Artificial Environment Co., Ltd | 651 |
87 |
| Denso Corporation | 25283 |
81 |
| Pierburg GmbH | 477 |
66 |
| Hitachi Astemo, Ltd. | 6409 |
66 |
| ETO Magnetic GmbH | 282 |
60 |
| Hitachi Automotive Systems, Ltd. | 3954 |
57 |
| KYB Corporation | 1415 |
50 |
| BorgWarner Inc. | 2585 |
43 |
| Fujikoki Corporation | 404 |
38 |
| Schaeffler Technologies AG & Co. KG | 10761 |
37 |
| Continental Automotive GmbH | 4602 |
35 |
| SMC Corporation | 1379 |
35 |
| Hamilton Sundstrand Corporation | 5017 |
34 |
| Vitesco Technologies GmbH | 2404 |
34 |
| HYDAC Fluidtechnik GmbH | 140 |
33 |
| Danfoss A/S | 1409 |
33 |
| Hyundai Motor Company | 23968 |
30 |
| Zhejiang Sanhua Intelligent Controls Co., Ltd. | 219 |
29 |
| Other owners | 3156 |