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DIFF Subgroup
D01D 4/04

Cleaning spinnerettes or other parts of the spinnerette packs (cleaning in general B08B)

Introduced: January 1980

Title

Titles differ between systems:

IPC: Cleaning spinnerettes or other parts of the spinnerette packs

CPC: Cleaning spinnerettes or other parts of the spinnerette packs (cleaning in general B08B)

Full Title

Full titles differ between systems:

IPC:

Spinnerette packs; Cleaning thereof > Cleaning spinnerettes or other parts of the spinnerette packs

CPC:

Spinnerette packs; Cleaning thereof (, D01D5/24, D01D5/253, D01D5/28 take precedence) > Cleaning spinnerettes or other parts of the spinnerette packs (cleaning in general B08B)

No child classifications to compare. This is a leaf node in both 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