H05F1/00	7	Preventing the formation of electrostatic charges	H05F1/00	H05F1/00		418
H05F1/02	8	by surface treatment	H05F1/02	H05F1/02		372
H05F3/00	7	Carrying-off electrostatic charges ({from shoes A43B7/36}; from living beings A61N1/14; {from tyres B60C19/08; from vehicles B60R16/06; from aircraft B64D45/02; from large containers B65D90/46})	H05F3/00	H05F3/00		1817
H05F3/02	8	by means of earthing connections	H05F3/02	H05F3/02		2465
H05F3/025	9	{Floors or floor coverings specially adapted for discharging static charges}	H05F3/02	H05F3/02		229
H05F3/04	8	by means of spark gaps or other discharge devices (devices providing for corona discharge per seH01T19/00)	H05F3/04	H05F3/04		1665
H05F3/06	8	by means of ionising radiation	H05F3/06	H05F3/06		1186
H05F7/00	7	Use of naturally-occurring electricity, {e.g. lightning or static electricity}	H05F7/00	H05F7/00		202
