- 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: 28
10-year publication summary
|
1
|
3
|
3
|
3
|
6
|
5
|
2
|
3
|
0
|
0
|
| 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 | 2025 | 2026 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| Waterworks Technology Development Organization Co., Ltd. | 40 |
3 |
| META Platforms Technologies, LLC | 6321 |
3 |
| Cometflo Ltd. | 4 |
2 |
| The Boeing Company | 20094 |
1 |
| Denso Corporation | 25232 |
1 |
| Shimadzu Corporation | 6306 |
1 |
| Aker Solutions AS | 178 |
1 |
| Atlas Copco Airpower, naamloze vennootschap | 1063 |
1 |
| Bray International, Inc. | 144 |
1 |
| Chang Peng Metal Industrial Co., Ltd. | 1 |
1 |
| Confluence Solar, Inc. | 1 |
1 |
| Dayco IP Holdings, LLC | 276 |
1 |
| Hydra-stop LLC | 27 |
1 |
| IDEX Health & Science LLC | 204 |
1 |
| Zhejiang DunAn Artificial Environment Co., Ltd | 648 |
1 |
| Schenck Process Europe GmbH | 41 |
1 |
| AVK Holding A/S | 97 |
1 |
| Fucoli-somepal-fundição de Ferro, S.A. | 5 |
1 |
| Tyco Water Valve (Shanghai) Co Ltd | 1 |
1 |
| Bixdo (SH) Healthcare Technology Co., Ltd. | 34 |
1 |
| Other owners | 3 |