- All sections
- F - Mechanical engineeringlightingheatingweaponsblasting
- F16K - Valvestapscocksactuating-floatsdevices for venting or aerating
- F16K 5/04 - Taps or cocks comprising only cut-off apparatus having at least one of the sealing faces shaped as a more or less complete surface of a solid of revolution, the opening and closing movement being predominantly rotary with plugs having cylindrical surfacesPackings therefor
Patent holdings for IPC class F16K 5/04
Total number of patents in this class: 668
10-year publication summary
|
51
|
59
|
64
|
66
|
68
|
61
|
49
|
66
|
49
|
35
|
| 2016 | 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 | 2025 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| Kerr Machine Co. | 157 |
19 |
| B. Braun Medical Inc. | 197 |
17 |
| SPM Oil & Gas Inc. | 336 |
14 |
| Valeo Systemes Thermiques | 2761 |
13 |
| Denso Corporation | 24755 |
11 |
| Mikuni Corporation | 342 |
11 |
| Shinwa Controls Co., Ltd. | 162 |
11 |
| Yamada Manufacturing Co., Ltd. | 148 |
10 |
| Robert Bosch GmbH | 43034 |
8 |
| WOCO Industrietechnik GmbH | 76 |
8 |
| Zhejiang Sanhua Automotive Components Co., Ltd. | 309 |
8 |
| Stoma Ventures, LLC | 41 |
7 |
| Fisher Controls International LLC | 1504 |
6 |
| Oil States Energy Services, L.L.C. | 77 |
6 |
| Tetra Laval Holdings & Finance S.A. | 2181 |
6 |
| Hamilton Sundstrand Corporation | 4954 |
5 |
| Bontaz Centre R & D | 60 |
5 |
| Robertshaw Controls Company | 104 |
5 |
| Vitesco Technologies GmbH | 2417 |
5 |
| Hitachi Astemo, Ltd. | 6365 |
5 |
| Other owners | 488 |