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• F - Mechanical engineeringlightingheatingweaponsblasting
• F04C - Rotary-piston, or oscillating-piston, positive-displacement machines for liquidsrotary-piston, or oscillating-piston, positive-displacement pumps
• F04C 18/02 - Rotary-piston pumps specially adapted for elastic fluids of arcuate-engagement type, i.e. with circular translatory movement of co-operating members, each member having the same number of teeth or tooth-equivalents

Patent holdings for IPC class F04C 18/02

Total number of patents in this class: 3337

10-year publication summary

Principal owners for this class