• All sections
• F - Mechanical engineeringlightingheatingweaponsblasting
• F01B - Machines or engines, in general or of positive-displacement type, e.g. steam engines
• F01B 1/04 - Reciprocating-piston machines or engines characterised by number or relative disposition of cylinders or by being built-up from separate cylinder-crankcase elements with cylinders in V-arrangement

Patent holdings for IPC class F01B 1/04

Total number of patents in this class: 14

10-year publication summary

Principal owners for this class