• All sections
• F - Mechanical engineering; lighting; heating; weapons; blasting
• F16K - Valves; taps; cocks; actuating-floats; devices for venting or aerating
• F16K 11/044 - Multiple-way valves, e.g. mixing valves; Pipe fittings incorporating such valves; Arrangement of valves and flow lines specially adapted for mixing fluid with all movable sealing faces moving as one unit comprising only lift valves with movable valve members positioned between valve seats

Patent holdings for IPC class F16K 11/044

Total number of patents in this class: 425

10-year publication summary

Principal owners for this class