• All sections
• F - Mechanical engineering; lighting; heating; weapons; blasting
• F01K - Steam engine plants; steam accumulators; engine plants not otherwise provided for; engines using special working fluids or cycles
• F01K 7/22 - Steam engine plants characterised by the use of specific types of engine; Plants or engines characterised by their use of special steam systems, cycles or processes; Control means specially adapted for such systems, cycles or processes; Use of withdrawn or exhaust steam for feed-water heating the engines being only of turbine type the turbines having inter-stage steam heating

Patent holdings for IPC class F01K 7/22

Total number of patents in this class: 212

10-year publication summary

Principal owners for this class