• All sections
• F - Mechanical engineeringlightingheatingweaponsblasting
• F16K - Valvestapscocksactuating-floatsdevices for venting or aerating
• F16K 3/18 - 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 flat sealing facesPackings therefor with special arrangements for separating the sealing faces or for pressing them together by movement of the closure members

Patent holdings for IPC class F16K 3/18

Total number of patents in this class: 338

10-year publication summary

Principal owners for this class