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with coaxially-mounted members having continuously-changing circumferential spacing between them

with coaxially-mounted members having continuously-changing circumferential spacing between them · 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	F04C18/063
Official title	with coaxially-mounted members having continuously-changing circumferential spacing between them
Display label	with coaxially-mounted members having continuously-changing circumferential spacing between them
Total patents	7

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

Filing activity over the last five years is stable.

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