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DIFF Subgroup
A61L 15/42

Use of materials characterised by their function or physical properties (liquid bandages A61L26/00)

Introduced: January 1990

Title

Titles differ between systems:

IPC: Use of materials characterised by their function or physical properties

CPC: Use of materials characterised by their function or physical properties (liquid bandages A61L26/00)

Full Title

Full titles differ between systems:

IPC:

Chemical aspects of, or use of materials for, bandages, dressings or absorbent pads > Bandages, dressings or absorbent pads for physiological fluids such as urine or blood, e.g. sanitary towels, tampons > Use of materials characterised by their function or physical properties

CPC:

Chemical aspects of, or use of materials for, bandages, dressings or absorbent pads (for liquid bandages A61L26/00; radioactive dressings ) > Bandages, dressings or absorbent pads for physiological fluids such as urine or blood, e.g. sanitary towels, tampons > Use of materials characterised by their function or physical properties (liquid bandages A61L26/00)

Of 12 combined children, 11 exist in both systems.

1 codes are CPC-only extensions.

3 shared codes have differing titles between IPC and CPC.

IPC defines codes here since 1990.

Child Classifications

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  • A61L 15/425 CPC only CPC only
  • A61L 15/44 Medicaments since 1990 IPC+CPC Available in IPC and CPC
  • A61L 15/46 Deodorants or malodour counteractants, e.g. to inhibit the formation of ammonia or bacteria since 1990 IPC+CPC Available in IPC and CPC
  • A61L 15/48 Surfactants since 1990 IPC+CPC Available in IPC and CPC
  • A61L 15/50 Lubricants; Anti-adhesive agents since 1990 IPC+CPC Available in IPC and CPC
  • A61L 15/52 Water-repellants since 1990 IPC+CPC Available in IPC and CPC
  • A61L 15/54 Radio-opaque materials since 1990 IPC+CPC Available in IPC and CPC
  • A61L 15/56 Wetness-indicators or colourants since 1990 IPC+CPC Available in IPC and CPC
  • A61L 15/60 Liquid-swellable gel-forming materials, e.g. super-absorbents since 1990 IPC+CPC Available in IPC and CPC
  • A61L 15/62 hydrosoluble or hydrodegradable materials since 1990 IPC+CPC Available in IPC and CPC
  • A61L 15/64 specially adapted to be resorbable inside the body since 1990 IPC+CPC Available in IPC and CPC

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