- All sections
- F - Mechanical engineeringlightingheatingweaponsblasting
- F16K - Valvestapscocksactuating-floatsdevices for venting or aerating
- F16K 17/30 - Excess-flow valves actuated by the difference of pressure between two places in the flow line acting directly on the cutting-off member operating in one direction only spring-loaded
Patent holdings for IPC class F16K 17/30
Total number of patents in this class: 331
10-year publication summary
|
17
|
35
|
26
|
16
|
17
|
23
|
24
|
21
|
22
|
0
|
| 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 | 2025 | 2026 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| Emerson Process Management Regulator Technologies, Inc. | 386 |
27 |
| Kawasaki Jukogyo Kabushiki Kaisha (trading as Kawasaki Heavy Industries, Ltd.) | 3173 |
10 |
| Saginomiya Seisakusho, Inc. | 225 |
9 |
| Eagle Industry Co., Ltd. | 1165 |
8 |
| Watts Regulator Co. | 320 |
8 |
| Engineered Controls International, LLC | 151 |
6 |
| Fisher Jeon Gas Equipment (Chengdu) Co., Ltd. | 45 |
6 |
| Kabushiki Kaisha Saginomiya Seisakusho | 78 |
5 |
| Mertik Maxitrol GmbH & Co. KG | 18 |
5 |
| Honeywell International Inc. | 13604 |
4 |
| Hamilton Sundstrand Corporation | 5013 |
4 |
| JTEKT Corporation | 2555 |
4 |
| Kawasaki Heavy Industries, Limited | 1638 |
4 |
| Aisan Kogyo Kabushiki Kaisha | 754 |
4 |
| Durr Systems GmbH | 267 |
4 |
| Keihin Corporation | 178 |
4 |
| Eaton Intelligent Power Limited | 6143 |
4 |
| TOYOTA JIDOSHA KABUSHIKI KAISHA (also trading as TOYOTA MOTOR CORPORATION) | 12547 |
4 |
| Toyota Motor Corporation | 34274 |
3 |
| Robert Bosch GmbH | 43449 |
3 |
| Other owners | 205 |