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Outline
Indent Level
Color Curly Brackets (indicating CPC extensions to IPC)

CPC
COOPERATIVE PATENT CLASSIFICATION
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STATIC ELECTRICITY; NATURALLY-OCCURRING ELECTRICITY (electrostatic machines H02N; uses of electricity in performing operations, e.g. precipitation, see the relevant subclasses for the operations)
NOTE
-
This subclass covers methods or arrangements for preventing the formation of electrostatic charges on bodies or for carrying-off these charges after their formation.

This subclass does not cover specific applications of the above-mentioned methods or arrangements, e.g. during the manufacture of artificial fibres or films, which are covered by the relevant subclasses.

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Preventing the formation of electrostatic charges
H05F 1/02
.
by surface treatment
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Carrying-off electrostatic charges (
{
from shoes A43B 7/36
}
; from living beings A61N 1/14;
{
from tyres B60C 19/08; from vehicles B60R 16/06; from aircraft B64D 45/02; from large containers B65D 90/46
}
)
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H05F 3/02
.
by means of earthing connections
H05F 3/025
. .
{
Floors or floor coverings specially adapted for discharging static charges
}
H05F 3/04
.
by means of spark gaps or other discharge devices (devices providing for corona discharge per se H01T 19/00)
H05F 3/06
.
by means of ionising radiation
Use of naturally-occuring electricity,
{
e.g. lightning or static electricity
}
This page is owned by Office of Patent Classification.
Last Modified: 10/10/2013