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PCE
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Search for IPC and CPC classification codes or keywords
DIFF Subgroup
F01N 3/04

using liquids

Introduced: September 1968

Title

Titles differ between systems:

IPC: by means of liquids

CPC: using liquids

Full Title

Full titles differ between systems:

IPC:

Exhaust or silencing apparatus having means for purifying, rendering innocuous, or otherwise treating exhaust > for cooling, or for removing solid constituents of, exhaust > by means of liquids

CPC:

Exhaust or silencing apparatus having means for purifying, rendering innocuous, or otherwise treating exhaust (electric control F01N9/00; monitoring or diagnostic devices for exhaust-gas treatment apparatus F01N11/00) > for cooling, or for removing solid constituents of, exhaust (by means of electric or electrostatic separators F01N3/01 ) > using liquids

Of 1 combined children, 0 exist in both systems.

1 codes are CPC-only extensions.

Child Classifications

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