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IPC Subgroup
A61L 27/5

Materials characterised by their function or physical properties

Introduced: January 2000

Last revised: January 2006

Full Title

Materials for prostheses or for coating prostheses > Materials characterised by their function or physical properties

Classification Context

Section:
HUMAN NECESSITIES
Class:
MEDICAL OR VETERINARY SCIENCE; HYGIENE
Subclass:
METHODS OR APPARATUS FOR STERILISING MATERIALS OR OBJECTS IN GENERAL; DISINFECTION, STERILISATION OR DEODORISATION OF AIR; CHEMICAL ASPECTS OF BANDAGES, DRESSINGS, ABSORBENT PADS OR SURGICAL ARTICLES; MATERIALS FOR BANDAGES, DRESSINGS, ABSORBENT PADS OR SURGICAL ARTICLES

5 direct subcodes

Child Classifications

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  • A61L 27/52 Hydrogels or hydrocolloids
  • A61L 27/54 Biologically active materials, e.g. therapeutic substances
  • A61L 27/56 Porous or cellular materials
  • A61L 27/58 Materials at least partially resorbable by the body
  • A61L 27/6 Materials for use in artificial skin

Top Applicants

Top 10 applicants by patent filingsfor 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