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PCE
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DIFF Subgroup
D01H 1/24

for twisting arrangements, e.g. spindles (braking arrangements for spindles D01H7/22; interrelated flyer and bobbin drive mechanisms D01H7/50)

Introduced: September 1968

Title

Titles differ between systems:

IPC: for twisting arrangements, e.g. spindles

CPC: for twisting arrangements, e.g. spindles (braking arrangements for spindles D01H7/22; interrelated flyer and bobbin drive mechanisms D01H7/50)

Full Title

Full titles differ between systems:

IPC:

Spinning or twisting machines in which the product is wound-up continuously > Details > Driving or stopping arrangements > for twisting arrangements, e.g. spindles

CPC:

Spinning or twisting machines in which the product is wound-up continuously (open-end spinning machines D01H4/00 ) > Details (drafting arrangements D01H5/00; twisting arrangements D01H7/00) > Driving or stopping arrangements (for open-end spinning machines D01H4/12, D01H4/20, D01H4/42; safety devices D01H13/14) > for twisting arrangements, e.g. spindles (braking arrangements for spindles D01H7/22; interrelated flyer and bobbin drive mechanisms D01H7/50)

IPC and CPC are identically structured here. All 5 subcodes exist in both systems.

Child Classifications

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  • D01H 1/241 driven by belt since 1974 IPC+CPC Available in IPC and CPC
  • D01H 1/242 driven by toothed wheels since 1974 IPC+CPC Available in IPC and CPC
  • D01H 1/243 driven by friction discs since 1974 IPC+CPC Available in IPC and CPC
  • D01H 1/244 each spindle driven by an electric motor since 1974 IPC+CPC Available in IPC and CPC
  • D01H 1/26 with two or more speeds; with variable-speed arrangements IPC+CPC Available in IPC and CPC

Top Applicants

Top Applicants (IPC)

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

  1. NATIONAL DONG HWA UNIVERSITY 1,242
  2. MASCHINENFABRIK RIETER CH 1,162
  3. TORAY INDUSTRIES JP 1,093
  4. TORAY INDUSTRIES 802
  5. JIANGNAN UNIVERSITY 771
  6. WUHAN TEXTILE UNIVERSITY 663
  7. SINOPEC (CHINA PETROCHEMICAL CORPORATION) 653
  8. CHINESE ACADEMY OF SCIENCES 559
  9. LENZING AT 525
  10. MURATA MACHINERY 492

Top Applicants (CPC)

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

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