• All sections
• F - Mechanical engineeringlightingheatingweaponsblasting
• F04C - Rotary-piston, or oscillating-piston, positive-displacement machines for liquidsrotary-piston, or oscillating-piston, positive-displacement pumps
• F04C 28/12 - Control of, monitoring of, or safety arrangements for, pumps or pumping installations specially adapted for elastic fluids characterised by changing the positions of the inlet or outlet openings with respect to the working chamber using sliding valves

Patent holdings for IPC class F04C 28/12

Total number of patents in this class: 152

10-year publication summary

Principal owners for this class