- All sections
- F - Mechanical engineeringlightingheatingweaponsblasting
- F16K - Valvestapscocksactuating-floatsdevices for venting or aerating
- F16K 3/28 - Gate valves or sliding valves, i.e. cut-off apparatus with closing members having a sliding movement along the seat for opening and closing with resilient valve members
Patent holdings for IPC class F16K 3/28
Total number of patents in this class: 31
10-year publication summary
|
2
|
1
|
3
|
3
|
3
|
6
|
5
|
2
|
3
|
0
|
| 2016 | 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 | 2025 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| Waterworks Technology Development Organization Co., Ltd. | 40 |
4 |
| META Platforms Technologies, LLC | 5778 |
3 |
| Aker Solutions AS | 240 |
2 |
| Cometflo Ltd. | 4 |
2 |
| The Boeing Company | 20051 |
1 |
| Denso Corporation | 24259 |
1 |
| Shimadzu Corporation | 6165 |
1 |
| Atlas Copco Airpower, naamloze vennootschap | 1031 |
1 |
| Bray International, Inc. | 136 |
1 |
| Chang Peng Metal Industrial Co., Ltd. | 1 |
1 |
| Confluence Solar, Inc. | 1 |
1 |
| Daansen U.S.A. Inc. | 5 |
1 |
| Dayco IP Holdings, LLC | 287 |
1 |
| Hydra-stop LLC | 28 |
1 |
| IDEX Health & Science LLC | 207 |
1 |
| Tyco Valves & Controls LP | 10 |
1 |
| Zhejiang DunAn Artificial Environment Co., Ltd | 548 |
1 |
| Schenck Process Europe GmbH | 43 |
1 |
| AVK Holding A/S | 98 |
1 |
| Fucoli-somepal-fundição de Ferro, S.A. | 5 |
1 |
| Other owners | 4 |