• All sections
• F - Mechanical engineering; lighting; heating; weapons; blasting
• F04C - Rotary-piston, or oscillating-piston, positive-displacement machines for liquids; rotary-piston, or oscillating-piston, positive-displacement pumps
• F04C 14/14 - Control of, monitoring of, or safety arrangements for, machines, pumps or pumping installations characterised by changing the positions of the inlet or outlet openings with respect to the working chamber using rotating valves

Patent holdings for IPC class F04C 14/14

Total number of patents in this class: 12

10-year publication summary

Principal owners for this class