This page is not indexed by search engines while we improve data quality.

the surfaces of the inner and outer member, forming the working space, being surfaces of revolution

the surfaces of the inner and outer member, forming the working space, being surfaces of revolution · 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	F01C1/3442
Official title	{the surfaces of the inner and outer member, forming the working space, being surfaces of revolution}
Display label	the surfaces of the inner and outer member, forming the working space, being surfaces of revolution
Total patents	7

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

Filing activity over the last five years is growing.

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