- 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: 4537
10-year publication summary
|
445
|
438
|
422
|
404
|
368
|
313
|
287
|
243
|
233
|
131
|
| 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 | 2025 | 2026 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| Robert Bosch GmbH | 44128 |
344 |
| Eagle Industry Co., Ltd. | 1176 |
152 |
| Zhejiang DunAn Artificial Environment Co., Ltd | 699 |
91 |
| Denso Corporation | 25513 |
81 |
| Pierburg GmbH | 480 |
67 |
| Hitachi Astemo, Ltd. | 6410 |
66 |
| ETO Magnetic GmbH | 282 |
59 |
| Hitachi Automotive Systems, Ltd. | 3954 |
57 |
| KYB Corporation | 1421 |
50 |
| BorgWarner Inc. | 2581 |
43 |
| Schaeffler Technologies AG & Co. KG | 10948 |
38 |
| Fujikoki Corporation | 414 |
38 |
| Continental Automotive GmbH | 4507 |
35 |
| SMC Corporation | 1385 |
35 |
| Hamilton Sundstrand Corporation | 5016 |
34 |
| Danfoss A/S | 1428 |
34 |
| Vitesco Technologies GmbH | 2398 |
34 |
| HYDAC Fluidtechnik GmbH | 140 |
33 |
| Hyundai Motor Company | 24602 |
31 |
| Zhejiang Sanhua Intelligent Controls Co., Ltd. | 228 |
29 |
| Other owners | 3186 |