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the mats or gaskets having corrugations or cavities

the mats or gaskets having corrugations or cavities · 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	F01N3/286
Official title	{the mats or gaskets having corrugations or cavities}
Display label	the mats or gaskets having corrugations or cavities
Total patents	7

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

Filing activity over the last five years is declining.

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