- All sections
- F - Mechanical engineeringlightingheatingweaponsblasting
- F16K - Valvestapscocksactuating-floatsdevices for venting or aerating
- F16K 1/42 - Valve seats
Patent holdings for IPC class F16K 1/42
Total number of patents in this class: 951
10-year publication summary
|
62
|
74
|
102
|
90
|
82
|
86
|
92
|
61
|
74
|
38
|
| 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 | 2025 | 2026 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| Fisher Controls International LLC | 1455 |
61 |
| Zhejiang DunAn Artificial Environment Co., Ltd | 709 |
48 |
| Robert Bosch GmbH | 44176 |
24 |
| SPM Oil & Gas Inc. | 360 |
19 |
| Mueller International, LLC | 746 |
16 |
| Kerr Machine Co. | 176 |
16 |
| Vulcan Industrial Holdings LLC | 82 |
16 |
| Eagle Industry Co., Ltd. | 1178 |
14 |
| Emerson Process Management Regulator Technologies, Inc. | 391 |
13 |
| HORIBA STEC, Co., Ltd. | 366 |
13 |
| Illinois Tool Works Inc. | 11866 |
12 |
| Fujikin Incorporated | 696 |
12 |
| Swagelok Company | 316 |
11 |
| Samson Aktiengesellschaft | 277 |
10 |
| Halliburton Energy Services, Inc. | 21320 |
9 |
| Zhejiang Sanhua Automotive Components Co., Ltd. | 331 |
9 |
| Dresser LLC | 295 |
9 |
| S.P.M. Flow Control, Inc. | 99 |
8 |
| Caldera Engineering, LC | 21 |
7 |
| CKD Corporation | 468 |
7 |
| Other owners | 617 |