DIFF Subgroup
D03C 9/02 Healds
Introduced: September 1968
Full Title
Full titles differ between systems:
IPC:
Healds; Heald frames > Healds
CPC:
Healds; Heald frames (for leno shedding D03C7/00) > Healds
CPC subdivides this area 4x more granularly than IPC with 3 additional codes.
3 codes are CPC-only extensions.
Child Classifications
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Top Applicants
Top Applicants (IPC)
Class D03,2013–2023, worldwide · Source: EPO PATSTAT
- TORAY INDUSTRIES JP 461
- TORAY INDUSTRIES 324
- SHANDONG RIFA TEXTILE MACHINERY COMPANY 279
- TOYOTA INDUSTRIES CORPORATION 260
- JIANGSU COLLEGE OF ENGINEERING AND TECHNOLOGY 259
- ZHEJIANG SCI TECH UNIVERSITY 244
- PICANOL BE 213
- TOYOTA INDUSTRIES CORPORATION JP 192
- FEDERAL-MOGUL POWERTRAIN US 175
- NATIONAL DONG HWA UNIVERSITY 171
Top Applicants (CPC)
Class D03,2013–2023, worldwide · Source: EPO PATSTAT
- TORAY INDUSTRIES JP 517
- PICANOL BE 214
- TOYOTA INDUSTRIES CORPORATION 210
- JIANGSU COLLEGE OF ENGINEERING AND TECHNOLOGY 202
- SANKO TEKSTIL ISLETMELERI SAN. VE TIC. TR 196
- TOYOTA INDUSTRIES CORPORATION JP 193
- FEDERAL-MOGUL POWERTRAIN US 188
- SAFRAN AIRCRAFT ENGINES FR 187
- SAFRAN FR 168
- ASAHI KASEI JP 150