DIFF Subgroup
D01H 13/14 Warning or safety devices, e.g. automatic fault detectors, stop motions
Introduced: September 1968
Full Title
Other common constructional features, details or accessories > Warning or safety devices, e.g. automatic fault detectors, stop motions
Of 5 combined children, 4 exist in both systems.
1 codes are CPC-only extensions.
Child Classifications
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- D01H 13/16 responsive to reduction in material tension, failure of supply, or breakage, of material +3 CPC IPC+CPC Available in IPC and CPC
- D01H 13/20 responsive to excessive tension or irregular operation of apparatus IPC+CPC Available in IPC and CPC
- D01H 13/22 responsive to presence of irregularities in running material IPC+CPC Available in IPC and CPC
- D01H 13/24 responsive to delivery of a measured length of material, completion of winding of a package or filling of a receptacle 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