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with a priming plunger or piston ahead of the pumping piston and connected on the same piston rod

with a priming plunger or piston ahead of the pumping piston and connected on the same piston rod · Cooperative Patent Classification (CPC)

Engines, pumps, lighting, heating, and mechanical systems.

Related technology areas

Mapped technology topics for this CPC code.

CPC classification statistics
Metric	Value
CPC code	F04B2015/026
Official title	{with a priming plunger or piston ahead of the pumping piston and connected on the same piston rod}
Display label	with a priming plunger or piston ahead of the pumping piston and connected on the same piston rod
Total patents	4

Year-over-year patent counts classified under this CPC code.

Filing activity appears to be declining based on the most recent years.

Representative publications under this CPC code from precomputed stats, or recent filings when stats are unavailable.