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DIFF Subgroup
A61M 29/02

Dilators made of swellable material

Introduced: September 1968

Title

Titles differ between systems:

IPC: Inflatable dilators; Dilators made of swellable materials

CPC: Dilators made of swellable material

Full Title

Full titles differ between systems:

IPC:

Dilators with or without means for introducing media, e.g. remedies > Inflatable dilators; Dilators made of swellable materials

CPC:

Dilators with or without means for introducing media, e.g. remedies > Dilators made of swellable material

Of 2 combined children, 0 exist in both systems.

1 codes are CPC-only extensions, 1 exist only in IPC.

Note: 1 CPC extensions are marked as secondary classification only.

IPC defines codes here since 1990.

Child Classifications

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  • A61M 2029/025 2nd only CPC only CPC only
  • A61M 29/04 Dilators made of swellable materials since 1990 IPC only IPC only

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