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DIFF Subgroup
A61M 39/10

Tube connectors; Tube couplings

Introduced: January 1995

Title

Titles differ between systems:

IPC: Tube connectors or tube couplings

CPC: Tube connectors; Tube couplings

Full Title

Full titles differ between systems:

IPC:

Tubes, tube connectors, tube couplings, valves, access sites or the like, specially adapted for medical use > Tube connectors or tube couplings

CPC:

Tubes, tube connectors, tube couplings, valves, access sites or the like, specially adapted for medical use (for respiratory devices, e.g. tracheal tubes A61M16/00; artificial heart valves A61F2/24) > Tube connectors; Tube couplings

CPC subdivides this area 7x more granularly than IPC with 17 additional codes.

17 codes are CPC-only extensions.

Note: 14 CPC extensions are marked as secondary classification only.

IPC defines codes here since 1995.

Child Classifications

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Top Applicants

Top Applicants (IPC)

Class A61,2013–2023, worldwide · Source: EPO PATSTAT

  1. PHILIPS ELECTRONICS NL 18,523
  2. NOVARTIS CH 14,253
  3. COVIDIEN US 13,953
  4. ROCHE CH 12,005
  5. CHINESE ACADEMY OF SCIENCES 11,955
  6. UNIVERSITY OF CALIFORNIA US 11,692
  7. HARVARD UNIVERSITY US 11,596
  8. L'OREAL FR 11,593
  9. P&G (PROCTER & GAMBLE COMPANY) US 11,297
  10. OLYMPUS CORPORATION JP 9,594

Top Applicants (CPC)

Class A61,2013–2023, worldwide · Source: EPO PATSTAT

  1. PHILIPS ELECTRONICS NL 20,621
  2. NOVARTIS CH 15,792
  3. ROCHE CH 14,303
  4. COVIDIEN US 13,862
  5. HARVARD UNIVERSITY US 13,454
  6. UNIVERSITY OF CALIFORNIA US 12,798
  7. P&G (PROCTER & GAMBLE COMPANY) US 12,140
  8. L'OREAL FR 11,800
  9. OLYMPUS CORPORATION JP 9,894
  10. BOSTON SCIENTIFIC SCIMED US 9,513