Opening or cleaning fibres, e.g. scutching cotton (scutching flax or like fibres D01B; making cellulose wadding in papermaking machines D21F11/14)

Introduced: September 1968

Title

Titles differ between systems:

IPC: Opening or cleaning fibres, e.g. scutching cotton

CPC: Opening or cleaning fibres, e.g. scutching cotton (scutching flax or like fibres D01B; making cellulose wadding in papermaking machines D21F11/14)

Full Title

Full titles differ between systems:

IPC:

Opening or cleaning fibres, e.g. scutching cotton

CPC:

Opening or cleaning fibres, e.g. scutching cotton (scutching flax or like fibres D01B; making cellulose wadding in papermaking machines D21F11/14)

IPC and CPC are identically structured here. All 6 subcodes exist in both systems.

Child Classifications

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D01G 9/02 by agitation within a moving receptacle IPC+CPC Available in IPC and CPC
D01G 9/04 by means of beater arms IPC+CPC Available in IPC and CPC
D01G 9/06 by means of toothed members IPC+CPC Available in IPC and CPC
D01G 9/08 by means of air draught arrangements IPC+CPC Available in IPC and CPC
D01G 9/12 Combinations of opening or cleaning machines IPC+CPC Available in IPC and CPC
D01G 9/14 Details of machines or apparatus IPC+CPC Available in IPC and CPC

Top Applicants

Top Applicants (IPC)

Class D01,2013–2023, worldwide · Source: EPO PATSTAT

NATIONAL DONG HWA UNIVERSITY 1,242
MASCHINENFABRIK RIETER CH 1,162
TORAY INDUSTRIES JP 1,093
TORAY INDUSTRIES 802
JIANGNAN UNIVERSITY 771
WUHAN TEXTILE UNIVERSITY 663
SINOPEC (CHINA PETROCHEMICAL CORPORATION) 653
CHINESE ACADEMY OF SCIENCES 559
LENZING AT 525
MURATA MACHINERY 492

Top Applicants (CPC)

Class D01,2013–2023, worldwide · Source: EPO PATSTAT

TORAY INDUSTRIES JP 1,268
MASCHINENFABRIK RIETER CH 1,200
NATIONAL DONG HWA UNIVERSITY 955
LENZING AT 602
P&G (PROCTER & GAMBLE COMPANY) US 594
WUHAN TEXTILE UNIVERSITY 494
TRUETZSCHLER & COMPANY DE 453
KOLON INDUSTRIES KR 433
OERLIKON TEXTILE & COMPANY DE 430
CHINESE ACADEMY OF SCIENCES 412