- All sections
- F - Mechanical engineeringlightingheatingweaponsblasting
- F16K - Valvestapscocksactuating-floatsdevices for venting or aerating
- F16K 17/04 - Safety valvesEqualising valves opening on surplus pressure on one sideSafety valvesEqualising valves closing on insufficient pressure on one side spring-loaded
Patent holdings for IPC class F16K 17/04
Total number of patents in this class: 1534
10-year publication summary
|
133
|
136
|
136
|
152
|
101
|
115
|
139
|
89
|
78
|
28
|
| 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 | 2025 | 2026 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| Robert Bosch GmbH | 43587 |
42 |
| Emerson Process Management Regulator Technologies, Inc. | 389 |
41 |
| Denso Corporation | 25183 |
17 |
| Engineered Controls International, LLC | 151 |
16 |
| Hamilton Sundstrand Corporation | 5017 |
15 |
| Eagle Industry Co., Ltd. | 1167 |
15 |
| Emerson Automation Solutions Final Control US LP | 49 |
15 |
| MANN+HUMMEL GmbH | 1798 |
14 |
| Schaeffler Technologies AG & Co. KG | 10707 |
13 |
| Fisher Jeon Gas Equipment (Chengdu) Co., Ltd. | 45 |
11 |
| BorgWarner Inc. | 2580 |
10 |
| Eaton Intelligent Power Limited | 6158 |
10 |
| Goodrich Corporation | 2175 |
9 |
| Halliburton Energy Services, Inc. | 21194 |
8 |
| Illinois Tool Works Inc. | 11735 |
8 |
| Ford Global Technologies, LLC | 21274 |
8 |
| JTEKT Corporation | 2554 |
8 |
| B/E Aerospace, Inc. | 1697 |
8 |
| Microtecnica S.r.l. | 97 |
8 |
| Oilgear Company, The | 24 |
8 |
| Other owners | 1250 |